The source material ban seems like it is just closing a loophole. I have a vague idea about a time-traveling cowboy and robot, tell ChatGPT to write a script, s

The source material ban seems like it is just closing a loophole. I have a vague idea about a time-traveling cowboy and robot, tell ChatGPT to write a script, script is terrible, so tell a writer to fix it up. Now that writer has different rights than if it were an original script, even though it is basically an original script.