It's mostly an interview with Cass and one of the York researchers. They go into detail about the methodology.
Key excerpt:
She says she "felt very angry"
"Where people have been looking after these young people clinically, whether or not they've been doing the right thing, they have been trying to do their best, many of them, for these young people.
Adults, who DELIBERATELY (her emphasis) spread misinformation, about this topic, are putting young people at risk, and in my view, that is unforgivable. "