It's only producing trash now. Already there is a decent jump in quality from GPT-3 to 4, and it's only gonna get better.
Plus it can do a lot of heavy lifting -- tell it to make 20 scripts with different prompts and then a single writer or team can Whittle them down. That's how a lot of scripts end up in production anyways, but now you ain't gotta deal with writers and can make rapid, drastic changes