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 definition of them beyond "leftist I don't like", and put them in a broader context.
Even in the HN thread on the essay, it felt like hardly anyone actually read and understood it, just brought their own assumptions and intellectual allergies and let them run wild. It would be great if people could discuss these issues rationally, but the vast majority can't. Everyone is on a hair trigger.
This pattern happens again and again with words and phrases like “liberal”, “socialist”, “Black Lives Matter”, “critical race theory”, “woke”, and “DEI”. Anyone who can’t see through it is either okay with the distortion, or not as good an observer as they think.
When I read it though, I realized he was just using "wokeness" to mean the dogmatic surface level understanding of the subject (IE, not that he was being surface level, but he's talking about people who engage with equality/identity issues in a surface level way). It's kind of a strawman idea, but people like that exist and are annoying. It makes me wonder how many people who are really centrists hate wokeness because they think the most annoying wing of it is representative of the whole movement.
Reading PGs article, I get the sense of someone who doesn't fully understand the thing he's criticising, so makes me hopeful he can learn. But again, I'm always a little afraid that the legit criticizisms of his article will get drowned out by people who reinforce what he says in it.