I think that means you have to have female markers on your ID. That's their bar, basically. The video looks fab, but I also spotted some T&C about political T-shirts being confiscated etc. so I would feel it was an event I might attend but be very wary in, which rather defeats the object, tbh. No doubt as I'm a nasty exclusionary type they wouldn't miss me.
But on the wider point, yep. Women only spaces of all types would be lovely, wouldn't they? We should definitely do that. I hear if you try it in Australia, they've ruled that sort of thing illegal? And obviously Michfest is still thriving. And everytime someone suggests such a thing anywhere, disclaimers have to be issued to make it clear that it's women-only with a very specific exception or there are howls of anguish.
But we should keep trying.