Well, no. It's OK to have views on which subjects are worth studying and which are not, which are being done well and which are being done badly. University courses are not places for professors to express opinions so much as to teach subjects. Their standards can be evaluated.https://twitter.com/BarryLyndon34/status/970855750926045184 …
I don't know. Does he teach or does he just opine on things? Do his students get a thorough education of a range of ideas?