A quick Google suggests the author was subject to a bit of adverse publicity for tweeting "Dear obese PhD applicants: if you didn't have the willpower to stop eating carbs, you won't have the willpower to do a dissertation #truth" and continues to publish and teach at the same institution after making his excuses and apologies and getting a formal warning.

It's a sad irony indeed if it's people frowning on that comment that's lead him to lecture everyone else on [censorious academic culture] arbitrarily deterring marginalised people from study.