It's not just the whole safe space nonsense, it goes much wider than this. I had a friend ranting to me the other week - she is at the "theoretical" end of her discipline. Her university superiors don't want her teaching courses on this - even though it's the glue that holds the practical side of things together and places everything in context - because the students find it hard, get low marks, then write bad reviews - which affects the university's place in the league tables.
It's a tendency I saw forming 15 or so years ago when I left university teaching, and I think it's got much much worse since then. I loved teaching, I was extremely good at it, I had students come up to me at graduation to say how much they'd enjoyed being stretched intellectually, I even had one student come to thank me for my perfectly timed kick-up-the-arse in his second year which had made him start working properly! But I wouldn't be allowed to teach that way in today's universities.