From the perspective of university leaders, it is almost impossible to reconcile the rights of those who demand "free speech" (particularly at the more extreme ends of any issue) with the rights of those who demand to be protected from what they see as prejudice and a cause of mental distress.
Finally, and most relevant in the Massey case, vice-chancellors as chief executives of the universities have an obligation to the health, safety and wellbeing of staff, students, visitors and any other person on campus. The challenge here, of course, is in assessing the credibility of threats to particular events.
Thomas has been criticised for cancelling an event because she believed there was a significant risk of harm to participants. At Auckland, the equivalent event went ahead, not because our commitment to free speech was any greater than Massey's, but because we were lucky enough not to have to deal with the same threats.
Ironically, our colleague Professor Harlene Hayne, vice-chancellor of the University of Otago, was roundly criticised in 2015 because she did not close her campus in response to a threat to the campus community.
The question for universities, and for our wider society, is not whether we support free speech - we absolutely do. The question is how we can create an environment in which we can welcome all speakers and views (within the law), support resilience in those who will hear views they find offensive or harmful, and deal with threats (or actual cases) of physical confrontation and violence.
That will require a much higher standard of discussion and debate than has been evident in recent weeks.
• Professor Stuart McCutcheon is vice-chancellor of the University of Auckland and chair of Universities New Zealand.