If you read the essay, it's clear he's not anti-startup, much less specifically anti-Y Combinator. He is pro- other things instead, and saying the "traditional"

If you read the essay, it's clear he's not anti-startup, much less specifically anti-Y Combinator. He is pro- other things instead, and saying the "traditional" (lol) startup culture is overshadowing all other choices. That's very different than "anti-YC."