Ben Kuipers (https://en.wikipedia.org/wiki/Benjamin_Kuipers, http://web.eecs.umich.edu/~kuipers/) is an incredibly nice man and good professor, and while I was at UT Austin he was the department chairman at least once. I never took a class from him and I don't even have any funny or embarrassing stories about him. In person, he's sounds very much like he writes here.
I read this piece before taking a class of his at UM and very much respected him for the thoughtfulness of his position in this post. From what I recall I never remember him bringing this up during class. He made for one of the most intellectually stimulating foundational CS courses I took in college. This post still resonates with me to this day.