I created an account to say this, but you said it better than I ever could. I just want to second the idea that the quote he gives as an example of Foucault's

I created an account to say this, but you said it better than I ever could. I just want to second the idea that the quote he gives as an example of Foucault's "obscurantism" is perfectly clear to someone who's actually read Foucault. The quote is unclear to someone who's never read Foucault because the author took it out of context. The "constraints" on discourse which Foucault references at the end of the quote is literally what Foucault spent his entire early career studying and explaining. To act like he just throws the word out there and never explains what he's talking about is intellectual libel.