Criticism isn't the issue at all though, it is enitrely irrelevant. No one is saying these women are above criticism or disagreement, just that whatever faults they may or may not have are completely irrelevant to the issue of the harassment they receive. It doesn't matter if Zoe Quinn is an abuser (still no evidence of it, just people saying she is because her ex said she was), she doesn't deserve the harassment she is getting and whatever her behaviour may be that is an entirely separate conversation. Ditto with Anita Sarkeesian, it doesn't matter what the disagreements are because disagreements are a healthy part of academic discussion. she isn't claiming absolute truth, she is just examining misogyny in video games in a way which makes a lot of people deeply uncomfortable. Bringing up legitimate disagreements is again an entirely different conversation which is not part of this.
This being an orchestrated campaign of sexual harassment and abuse aimed at any woman who looks like she ie becoming prominent in the games industry. Their personal faults don't matter because this is not about what they do, it is about what they represent. Zoe Quinn got a lot of publicity over her indie game, showing that a woman could get stuff published, which threatened the traditional male controlled publishing so she has been viciously attacked ever since. Whether or not she abused her boyfriend is not relevant to that. Anita Sarkeesian also has become a symbol for feminism in gaming and so she under constant assault as well. As are many, many other women in the industry and many more don't take risks or accept promotions to positions where they might get their name out there for fear of inviting the same response.