So you're still not admitting that censorship goes on and now you're claiming that all this is part of a plan by the "others" to make the uni's look bad?
Those are small outliers that happened when very, very controversial public figures spoke. However the idea that this constitutes censorship is part of a broader conservative narrative against student culture and the academy that has existed since the 60s but has taken a new form in the present. If you can successfully paint the university system as a training ground for radical deadbeats who learn nothing useful, it's easier to defund them.
http://www.dissentmagazine.org/article/from-master-plan-to-no-plan-the-slow-death-of-public-higher-education