That film had many problems, but the acceptable frame rate was not one of them. Most criticism wasn’t about that.
I don’t see how it’s the case for frame rate, except perhaps for CGI (which has also improved).
I think just like with games, there’s an initial surprised reaction; so many console-only gamers insisted they can’t see the point of 60 fps. And just like with games, it only takes a little exposure to get over that and begin preferring it.