I think it might speak to other parents who are not accepting? Like it shows that someone who also thought like them was open to having their mind changed. They might be more willing to listen to her story.

Update: I found the original article. It's very light on details and only mentions there was a time some years ago where Tamzin struggled with accepting her son's identity. Still, it's nice (to me, anyway) to see a positive development arc.

I think a lot of the most vocal transphobes are people who have been estranged from their own kids due to their unwillingness to accept them. Like they rationalize it as “gender ideology” stole my kids from me, rather than acknowledge that their kids cut them off because they were being toxic. Having a high profile example of someone “getting their kid back” by dropping the bigotry can help disarm that narrative.

It's about normalization & representation, for a lot of people to wake up that's enough in the face of active opposition.