In the article she talks about expecting to get shit for writing it. The corollary must be that she would expect to get even bigger shit if she took the gender critical/rad fem side. It's a no win situation and she has chosen the side where she considers there is least to lose. And for now at least she has made the correct judgement.
I will say, outraged as I am, that I still believe that Caroline is a fundamentally decent woman. But the Green Party set up reeks of Stockholm syndrome.
In a similar way, many people who have trans friends cannot open their minds to the harms of the ideology because it just feels too disloyal and their friends are decent ordinary people.