Are they not just confused individuals who are trying to find a reason for their confusion? I don't think I've ever heard of any situations where a man has gained access to women's changing rooms as a transwomen, for male sexual gratification? (Although I could be wrong).
This man is not confused. Nor trying to find a reason for their confusion. There's a thread on here called 'it will never happen resource thread'. It's currently near the top of the threads list. Have a Read of that and see if you still think the same way.
also read up on Autogynephilia. Then take into consideration that this person was annoyed that despite knowing they don't pass as female deemed the fact that a skirt was supposed to give entry to the magical lady spaces. Then consider the safety aspect again.
If a man claiming to be a man wanted in to the women's changing rooms you would see it for what it was a man getting his kicks from either watching women undress or forcing women to watch him undress.
Why does this mans very special totally unprovable internal feelings mean he must be safe? He's still just a man wanting access to single sex female spaces where women are vulnerable and in a state of undress.
Why wasn't he happy to just use the unisex facilities? Why was it so important he access the women's?