I don't know of course but I always got the sense RA was quite intelligent.
Anyone with half a brain cell to rub together realises that this anti-science anti-reality movement is going to be called out at some point and people will look back at past statements about women having penises (etc) and judge people on their intelligence levels, inability to stand up to totalitarian diktat and willingness to harm women and children. The attempts at mass delusion and totalitarian control of thought and speech can't persist forever.
The binary nature of sex in mammals is millions of years old, it's not some passing trend. It's like a movement that denies gravity exists if you decide you don't believe in it and forces people to act like they're all really floating around and that things that drop to the ground when you let them go don't really do that.
I suspect RA has realised that the turning point is coming and has decided now is the time to speak up.