I’m not suggesting that the director has full responsibility for the art. They are part of a team, and the creative style of a director heavily influences the finished product. You can tell who directed a movie just by watching it. There are very important creative decisions and directions that point the team of more specialized artists in the right direction.
This is not analogous to AI art. That would be like the director of a movie telling a team of interns to cut together clips of other movies as best they see fit, within a general outline of the script. A person using AI to generate art isn’t part of the creative process in the same way; they tell a machine what to do, and decide whether to rerun or tweak the prompt after seeing the result. This takes some small modicum of creativity, but it isn’t creating art. It’s fine for fun, or to use as a stand in tool, or to mock-up designs, but it will never have the creative direction of a human being, or stand on the same level with true masters, regardless of how well it can copy their style. It can’t understand the art.
Directing is an art form of its own. The cinematography, the pacing, the set design, acting, and so much more is all influenced by the director’s decisions. It would be like saying a conductor or a music producer isn’t an artist. Easy to say if you don’t have an understanding of the art form, but dead wrong. There are a ton of creative choices at all levels made by directors, and there’s a reason we’ve been using them in one way or another since we first started performance art. I’ve worked under and beside directors in the past, and I have only the utmost respect for what a good director can do for the art.