Of course, this produces useful results every now and then, but it's not like we pursued ruthless efficiency / maximum rate of knowledge advancement before. We just let them do their thing, essentially treating them as artists and letting them pursue the craft for its own sake. If we weren't interested in maximum throughput before, why is that an objective now?

If you look at the ten top-grossing films in the past 15 years, it's almost exclusively computer animations or SFX showcases with some token, quip-based acting thrown in every now and then (all the Marvel universe stuff).

Basically, I'm not even sure if replacing actors with AI would be stylistically perceptible for the average moviegoer. There are interesting films still being made, but almost no one is watching them, because you have the option to watch some SFX explosions and flying superheroes in Avengers VII.