I don’t think it’s largely abuse. Some of us wanted to go again with another group of friends. Example, I saw jumanji alone, liked it enough I brought some friends and watched it again. Star Wars was the same way. I’m fine with them removing it since I’m still getting way more from the service than I’m putting in, but I don’t want to be called an abuser for doing what their own terms said I could do.
Oh, I want to be clear - I don't think it's abuse at all to use it as you describe - even if you want to go to the same movie every day that seems completely fine to me. Abuse would be getting the ticket using MoviePass and then giving it away/selling it to someone else.