For every person who gets to make creative decision, there are hundreds upon hundreds of people whose sole purpose is slavish adherence to those decisions. Miyazaki gets to design his beautiful characters - but the task of getting those characters to screen must be carried out by massive team of illustrators for whom "creative liberty" is a liability to their career.
(And this example is only for the creative aspects of film-making. There is a lot of normal corporate and logistical stuff that never even affects what you see)
That's not to say I'm looking forward to the wave of lazy AI-infused slop that is heading our way. But I also don't necessarily agree with the grandstanding that AI is inherently anti-creative or only destructive. I reserve the right to be open-minded.
The irony is that movies and TV themselves represented a cheaper, industrialized and commoditized alternative to theater. And theater is still around and just as good as it ever was.