I’m assuming then that “grain management” is done on new movies shot on film as well? Could that be why a lot of new movies shot on film end up looking so digital?
I’m sure to some degree it is, some films more than others (heavy post-production modification is a hallmark of modern film since Amelie and O Brother Where Art Thou?), but fine-grained filmstock and large format filmstock can look relatively grain-free compared to the chunky, grainy filmstock of the seventies. Your modern 35mm film will look more like Lawrence of Arabia than 4K83 even without any degraining – much more subtle.
Agreed about color grading. It’s necessary to regrade films for Blu-ray, but people don’t seem to have as much of an interest in color fidelity as they should. It often doesn’t even seem to be a goal at all.