Six people signed the letters. There are 9 cast members according to the times, 6 male, 3 female. I wonder if the other 3 weren't at the party, or were but didn't sign.
It's worth reading the whole blog. I also don't believe that she said some of the things listed, at least in the way that they state. She will have said one thing (we can probably work out what for each) and they heard sonething else much blunter.
She said to the times that she denied the allegations she had seen so I think there is complete disagreement about the basic facts.
It's like a real version of how conversations with tra's on twitter go. If someone says "male ppl as a group pose a greater risk of sexual assault, and lots if women have suffered from male violence and need female only spaces,", they hear "all trans women want to sexually assault women in female spaces". It's bizarre but they do seem to hear this.
At one point they say the men were trying to explain to her that gender is a construct. But she will know this. She will disagree that gender is a part of each individual, rather than an aspect of society. And she will disagree that the construct is so significant that it should supercede sex. So they haven't begun to see where she was coming from have assumed motives based on that.