I was at the event and an audience member asked HL a question about this. I can't remember the exact way she phrased it, but it was something like "when you describe some activists as genuinely transphobic and being people you think aren't helping, are you talking about me, who is someone who will not use preferred pronouns/believes people can't be born in the wrong body/worries about children/rejects gender and transgender as a concept". Apologies to the questioner if I got that wrong but I think that was the gist.
HL's reply was no, she's not talking about people like that woman (I think she said she thinks that's a reasonable position, if not hers) but (again I'm remembering, so might not be perfect) three things: 1, her position is a liberal one, ie if you want to identify as a woman go for it, not going to impinge on your 'right' to do so, but you don't get to impinge on others' rights either, rather than a view that transgenderism makes no sense/is an offensive ideology, 2, there is some stuff in the discourse that she thinks is cruel and genuinely transphobic, eg 'mocking how people look', and 3, doesn't like the movement taking a 'any platform' approach, ie aligning with US evangelicals, extreme right wing, etc. I think it came across quite strongly in the panel discussion that her working for an American publication means she worries more about general political polarisation and the dangers of the extreme right in the US.
(Apologies to either woman if I've misrepresented them, that's the best of what I recall)
I disagree with her on several things but I think the issue as a whole is better for her journalism on it. Was a good event, HL, Julie Bindle, and Susan Dalgety were especially good. The chair shut down audience discussion way too much imv though