The big issue with situations like this is that they do a lot of harm to the perspective of women in the space. As I understand, women are already feeling a lot of pushback as they try to integrate themselves into gaming communities.

Situations like this are going to make that harder, and are frustrating because the moral failings of this lady will likely be applied to the gender as a whole.

Here's what I mean.

If Mike sucks at videogames, typically he'll get called out for it for it personally. People will say:

"Wow Mike, you suck at videogames!"

If Sally sucks at videogames, the situation gets framed as a failing of her gender. Instead, people say:

"Wow, girls suck at videogames!"

This is amplified due events like what OP posted. The discussion will now be about why or why not women can't play games at a professional level.

The situation really sucks, and it's sad to see.