And either Zoe a) has not read the guidance properly; b) not understood it; or c) has deliberately misrepresented it to make her point.
Given she was educated at one of the best private girls schools in the country and then Oxford, I think it's unlikely to be b). And she's a journalist, so one would hope that a) applies.
In which case, we're left with the sorry c).
Zoe says in her article: "Legitimate justifications” now include female-only fitness classes and the toilets of places of worship where it may offend people, on religious grounds, to have inclusive spaces. I can’t even wrap my head around the person who doesn’t want anybody trans in their aerobics class
In the guidance, the leisure centre example is: A leisure centre introduces some female only fitness classes. It decides to exclude trans women because of the degree of physical contact involved in such classes.
So, not aerobics but a class where there is a high degree of physical contact between participants, meaning women could get hurt.
But obviously that doesn't fit Zoe's narrative so she's reduced to making up shit lies.
It's unfortunate that she thinks her readership is stupid and ill-informed. But I think that's all she's got because her main argument seems to be 'however crap Keir and Co are, please vote for them because otherwise we're stuck with Boris'.
I'm not sure why they continue to pay her but I'm glad I've not given any money to the guardian for many years.