In fact considerably less odd because he wouldn't need to do any of that, just wander in looking as male as he likes and assert he's a transman.
But I do sympathise it must be awful to have a massive hole blown in your favourite hypothesis.
My hypothesis remains intact. Under self-id, all someone needs to do is assert their femaleness (regardless of appearance) in order to access spaces where women are vulnerable. That is worrying, but not odd.
What is odd is the idea that a man might pretend to be a woman who is pretending to be a man so that he can access women's spaces. That is odder than odd. And the fact that you can come up with this sort of thing with no consideration that the motive for such convoluted behaviour can only be detrimental to women is odder still.
What colour car do you have or did you used to drive?
Bereavement wipes out everything
Voting. I’m so glad we still have the ‘old fashioned’ system…

