Depending on the university, it's been like this for quite some time. I remember pro-War protesters at my university being censured for "violating university speech code" back in 2001. We were allowed time off from our classes to protest going to war--even allowing professors to cancel classes--but any attempts to distribute pamphlets or discuss the opposing opinion was actively shut down. I've since completely changed my opinion on the war, but that doesn't change my opinion that they should have been allowed to voice their opinion.

Later, in a slightly unrelated event, the university was successfully sued to remove the speech code from the code of conduct: https://www.thefire.org/cases/shippensburg-university-speech...

<strike>IIRC, that particular case was about religion-oriented groups on campus, where a Christian organization that didn't allow Muslim members was banned, even though there was also a Muslim organization that didn't allow Christians that was allowed to remain. I didn't particulary care for the idea that any group should be allowed to ban anyone from membership or attendance for any reason--I would have preferred to see all orgs made to accept all students--but the same speech code was at the heart of blocking the pro-war protests, so it seemed like a net good.</strike>

EDIT: sorry, it was about the "free-speech zones" the university had created for anyone not related to the anti-war protests. The particular area they chose was specifically out of site from the areas the anti-war rallies were held.