You should have finished reading PG's essay. It's really quite narrowly scoped. There's no indication I could see that he doesn't still hold the same basically liberal politics (he included explicit disclaimers, for all the good that did); he might still be fine with transgender identity. He just wanted to talk about how the particular loudmouth brand of annoying leftist came to prominence. He even had a decent defin…
I think the essay was a rorschach test for readers. On its face, it has a very reasonable and measured tone. It also has some nods to the other side like the disclaimer you mentioned. However, it starts from some uncharitable premises (e.g., its definition of wokeness) and contains unnecessary gibes (e.g., against social sciences). More importantly, it takes the tone of a social sciences essay, a discipline that he mocks, without any of the rigor. There are not sources for his claims about the origins of wokeness or how universities operated from the 80's until today, you just have to take him at face value. It gives the illusion of being erudite without doing any of the actual work.