I must admit, if there was a guy giving a lecture at my institution, and I was informed that he had made a Third Reich comparison while talking about admissions criteria, I'd be pretty opposed to the lecture going on. At the same time, I don't like the idea of succumbing to an online mob of sorts. It seems like MIT is thinking kind of like a business here. And perhaps that's the bigger problem – not only are campuses…
I used to think as you outlined here, and then I realised that I would only care if they made a Third Reich comparison that I disagreed with. If they said Milo is literally Hitler, I'd... well, I would have been very confused because Milo is a tasty chocolate drink. But I wouldn't have considered it an offense... so the offense wasn't actually the use of unspeakable comparisons, it was the sin of doing so while disag…
[Edit: some people think it is reasonable, but they don't want to explain themselves]