I checked the doc and saw the video, it’s more interesting than I expected!
I’d consider adding an option to specify a mandatory color palette for some videos where that is expected to produce better results.
I wonder whether skilled animators could cheat (like captcha cheaters do) to automate the process, so some sort of moderation (maybe broadcasts (HOW TO: What is a broadcast? How do I publish one?) or multisig-owned assets?) could be used to hopefully prevent such attempts.