This surprises me zero.
Here's a joke I learned while in the industry.
How may producers does it take to screw in a light bulb?
None. Producers don't screw in light bulbs, they screw in their own filth.
Full disclosure: I worked for Harvey for years, a few times directly, but not closely. I had heard none of these sorts of allegations about him specifically, but about people in his position? Not at all surprised. They are, in general, an incredibly vile bunch of shitstains. Just completely repellent beings.