Replace “machine” with “film crew”, “rerun” with “do another take”, and “tweak the prompt” with “provide notes”. If they’re giving notes to a computer or a person doesn’t really change the nature of their work, only the language they use to provide those notes.
is what a director does? You have no clue what you’re talking about. They’re far more involved in the creative process on every level than you understand.
Your question about who AI helps is a valid one. I agree that that’s what’s important about AI use. I use AI in my work, but not to replace human beings, but as a tool to make easy mock ups or test ideas. I find trying to replace human creativity in a way that replaces jobs or the human spark that makes art, art, abhorrent. AI art cannot exist without humans to train on, so humans cannot be fully replaced, but I hope to never see a day where AI takes the positions of well compensated artists leeching off the work of unpaid or underpaid humans.