And this is fine when you realise that Netflix replaces direct-to-video movies and not that of cinema, as much as they refuse to admit.
The one use case I wanted to see for AI is "tunable" contexts for videos. If this is your first time, watch the whole thing but if you need less context just edit it so it skips over the obvious parts
They're not fine-grained enough IMO - IMDB's "parent's guide" is great for detailed content information.
Similarly, with game ratings (video- and boardgames, as it happens), I appreciate them, but often they're trying to do two things, rate the game content and the gameplay. They fail often, and I buy outside the ratings, but I'm happier having them than not having any information in that space.
I wouldn't want no ratings for film/TV as that would mean I'd have to seek out spoiler-level information before finding if media was right for what I wanted to consume (or take friends/family to consume). I try my best to see little about the plot of films I'm keen to watch.