I think that many people believe that racism et al are only actually worthy of being pointed out if examples of them were done deliberately with malicious intent. For example, my father complains about how the media seems to always be complaining about racism in regards to police activity or their representation in Hollywood, and yet would quite likely stand up for someone if somebody was slinging racial slurs at them in public and discriminating against them in an obvious manner. People like him probably find these "smaller issue" social justice concerns to be extremely frivilous, get burnt out from hearing them all the time and definitely do not consider themselves racist. Unfortunately, due to a lack of interest or education on the subject, they are missing the underlying, unconscious issues in society which are contributing to the lingering of racism/sexism/etc. This often means that people concerned with social equality need to be concerned not so much with the less-common and clearly unacceptable examples of deliberate racism, but moreso with the unintentional examples.
Honestly, I find that deliberate examples of inequality are potentially less offensive than the unintentional, ingrained ones where people don't even realize that they're being potentially offensive. To link back to the start of the article, think about how big budget video games and movies rarely feature a hero who is a white, a male and a power fantasy of some sort. Think of how Assassin's Creed: Unity ditched the option to play as a female assassin, claiming that they didn't have the development time or budget to do it (which was promptly revealed to be a bullshit excuse, they just didn't prioritize the female audience). Another good example is in Warhammer 40,000. Every couple months, someone comes onto the Dakka Dakka forums and asks where all the non-whites are in 40k. The simple answer is that there ARE other races in the Warhammer universe, and there are a handful of examples of them in 40k art, but it has literally not even occurred to the painters to paint any of their soldiers non-white. Honestly, I fell into the same trap with my 40k armies. When I was growing up, it never even occurred to me to paint any of my Space Wolves anything other than white. When I started an Imperial Guard army years later, I still didn't think to paint them anything other than white for quite some time, until one of those Dakka Dakka topics pointed out the issue. We all have our own blind spots where we don't even realize that we're missing out on a chance at equality, or at least to make a conscious artistic decision one way or the other.
This is why the Bechdel test is so crazy - women rarely speak to one another about something other than a man because of the way that the screenplay is written. When 2 women speak, they have to advance the plot in some way by the very nature of the narrative. However, the fact that most movies fail the Bechdel test really shows how marginalized women are in movies, and that they aren't generally the ones who the movie really cares for. It shows that women are not prioritized in the scripts, nor are they generally the focus, and generally serve as little more than plot convenience, especially when they speak to one another (because rarely do they bother to have 2 real women characters with any agency). My friend and I were watching the 1998 Godzilla, which isn't an overtly sexist film by any means. However, we were commenting on it the whole time, when halfway through I was suddenly struck by the realization that the film had bombed the Bechdel test. There were only a couple scenes in the whole movie which featured two women talking to one another, and they spent all of them talking about a guy as the focal point to set up the love story subplot. It really illustrates where the film's real focus is, and the fact that it's so common is distressing (and let's not even mention the 2014 Godzilla, which doesn't even feature a single scene with more than one woman in it with a speaking role... this is a frighteningly common reality in movies).
What about deliberate examples of inequality though? The Witcher 3 is getting taken to task for apparent sexism in the game (although I'll admit, Feminist Frequency does not have the best track record of picking good, clear examples). I haven't played The Witcher 3 unfortunately, so I can't comment, but one complaint that sounds valid is that the game features a lot of gendered insults when you play as a female character (or when they're around at least... again, haven't played it). Moral judgments about it aside, can we at least agree that having such marked differences in the insults directed at male and female characters is sexist? How odd would it be if enemies taunted your male game hero by saying they were weak, had a small dick, couldn't pleasure their partner, or threatened to sexually assault them if they fail? Unfortunately, this is a strangely common trope for women in video games: quite a long time ago I wrote about Lollipop Chainsaw, a game I actually rather enjoyed, but lamented how the enemies will frequently call the protagonist a "bitch", "slut" and threaten to violently sexually assault her. This also apparently happens all the time when you play as Catwoman in Batman: Arkham City - there's a 6 minute video on Youtube of nothing but the instances where enemies hurl gendered insults at her, which is kind of insane. On the more positive end of the scale, I recently replayed the Tomb Raider reboot on PS4 and, despite the island being inhabited by violent, insane, foul-mouthed sailors, I didn't find the game any less "realistic" for not having them sling gendered insults at Lara all the time. Rather, they simply act as if she was any other badass running around kicking their asses, and shout out her actions ("she's flanking us!") rather than taunts.
While gendered insults are undeniably sexist just by definition (male characters get generic taunts, female characters are taunted based on their gender), that isn't to say that this is something that needs to be eliminated necessarily. I'm wondering if the point that Sarkseesan is trying to make (and the one she tries to make whenever she picks a really questionable example) is simply pointing this out to bring awareness to this potential issue in gaming, rather than saying "This is bad and needs to be eliminated from gaming RIGHT NOW." If anything, it is more likely stopping devs from taking this sort of thing for granted and trying to get them to be more deliberate when they utilize gendered insults and female characters - is being beaten down and shamed for their gender key to the experience that the devs want to give the player when playing as a female character?
One common mistake that inexperienced writers make is when they try to make their story "mature", they tend to overcompensate and just saturate it in misery, rape and constant violence. This causes the plot to be completely forgotten or overshadowed, and the acts themselves to feel meaningless. The fix, of course, is for the writer to be more deliberate with the use of mature themes, so that they have the impact that they SHOULD have. Rape, sexism and the like can be used in fiction effectively, but artists should be very deliberate when doing so and do it with the expectation of some potential backlash.
For example, I hardly want to call myself a great writer, but this deliberate inequality is something I have tried to take into account with my own sci-fi novel I have been working on. It takes place around a thousand years after humanity undergoes a biological revolution and colonizes the galaxy. Racism and sexism aren't totally dead, but they are significantly diminished because the fearful have turned their attention towards bio-engineered organisms. As a result, women and men (of various races) hold equally prominent positions within the civilian and military structures without people having to comment on it. Homo/trans-phobia is also considered a non-issue in the universe of the story. One major character is bisexual and hated by basically everyone, but no one even thinks to belittle him for his "queerness". When deliberate inequality is brought up, it is done to show characterization, not just because I decreed that this story featuring six foot spiders and space magic has to be "realistic". This is not pressuring me to conform to diversity, this is making my story far more interesting and opening up more avenues for creativity than if I stuck to my own narrow "vision".
People seem to assume that criticism is an attempt at censorship (a misunderstanding which helped kickstart the whole GamerGate movement...). They claim that criticizing media for just fitting with the status quo and featuring "realistic" examples of sexism/racism/etc is an attack on the creative rights of the artist. However, I think that criticism should be seen more as an attempt at artistic improvement. By pointing out examples of inequality, critics are effectively saying "this art would be improved if the female characters weren't such a flat plot device, consider making them more interesting in the future, because it will enrich the narrative", or "I would enjoy this more if they weren't calling the female protagonist a 'slut' or 'whore' all the time, this is grating for me because I hear these sorts of insults get hurled at my sex all the time". The artist is free to accept or dismiss that criticism however they wish, but if they dismiss it then they shouldn't expect not to be criticized for it.