zero-tolerance to anybody questioning the current dogma is seen everywhere
Generally, of course dogma should be questioned.However, academic freedom does not mean that universities must provide a platform to literally anybody that wants one. Their resources are finite and choices need to be made.
Surely, we can agree that some discussions by their very nature are harmful or at least deeply insulting. Imagine discussions such as "should women be allowed to vote?" or "are $ETHNICITY people worthwhile of being treated like other human beings?" or "was Hitler right?" or some other such topic.
I would certainly not say such speech should be banned, but it is equally clear to me that no institution should be obligated to provide a platform for such ideas.
It's worth noting that "teach the controversy" is the disingenuous rallying cry of creationists seeking to wedge anti-evolution religious dogma into US public school systems. Those people know that merely giving creationism a figurative seat at the table serves to legitimize it to some extent. They also hope to wear down their opposition (in this case, already-overworked educators) by consuming massive amounts of their time and energy. Well, such religious teachings should be denied a seat at the table, at least in publicly-funded secular schools.