First you use crew and directors as holding dual use - one is collaborating on the idea itself. One is a necessary thing in the process. Crew is important primarily because they literally appear on screen. That they help collaborate is a good side effect.
AI still allows you to get collaborators for ideas and eliminates need that is usually a waste of time.
I get your point on using constraints in reality to make something sublime. Ironically it adds to my point rather than yours. Indie movies are generally considered more artistic than blockbusters. We realise that we shouldn’t don’t go out maxing things like scale and power. This doesn’t make a movie more artistic. So what remains? It’s the idea. The vision. AI lets you directly address this. What you suggest is adding fake physical constraints that we should surpass. Idk how that is artistic.