Right, it enables creativity by removing the huge obstacle of needing to have technical skill. Along the lines of your script writer analogy, in the musical world you had studio musicians like the fabled Wrecking Crew whose expert skills could be used by a producer to realize his vision for a song. Now with AI, essentially everyone can have their own virtual Wrecking Crew (and team of songwriters).
The catch is that there’s a lot of creativity even in things that are considered strictly technical. And conversely a lot of creativity is informed and inspired by technical knowledge. So it seems doubtful they can be entirely separated. That’s why I think that at the highest levels AI won’t replace the human mind and experience. But it definitely is a powerful tool and will increase quality and quantity at the lower end of the creative realms, and the line between low and high end will move upward as AI improves.
I find in writing, I want to be very descriptive in how I setup a scene, describe the characters, and state the outcome I’m seeking. It’s still GIGO for computers.