Trooncels fundamentally misunderstand how women think and operate. They are, unironically, male-brained and too autistic to understand why women want to have a women-only tournament. Most women aren't sweats, they don't minmax their characters and strategies, and don't spend countless hours studying maps, combos, or exploits to use to their advantage. Women want to have an easy, fun time spent together with other women where they enjoy the things they're doing in good company. Think of it as a virtual "girls night".
Men and women see competitions in different ways. If men are 2/3rds in for the win and 1/3rds in for the experience, women are 2/3rds in for the experience and 1/3rds in for the win. That is to say, winning is not the most important thing for them. Sure, it plays a part, but it's more about the community, the atmosphere, the networking, and overall having a good time. The last thing they could possibly want is to hear some autistic autogynephile screaming in their ears in what he thinks a woman's voice is supposed to sound like about how they're bad at the game or how they should do X instead or have Y weapon and so on.