Totally agree that this is brave, and it's sad that that's the case, with something so gentle.
I also think that a lot of people, and she might be one, were very 'of COURSE we should support all trans rights' when the issue first started coming up, and it's only now that certain aspects of the trans activist agenda are more well known that there's some re-thinking going on. I mean, it's all moved pretty fast, I remember when Greer was talking it was 'how dare you say trans women are men' - whereas now I actually can't imagine a prominent woman saying that. Now you're on thin ice if you say that trans women weren't always women, pre transition. I think a lot of people are hitting a bit of a tipping point.