i think that's a mis-statement of the problem being addressed here. It's not a question of how useful AI video will be generally. It's a question of OpenAI doing it specifically. IMO it's two factors:

1) the intellectual property issues make commercializing freeform video generation impossible. The more popular your service becomes, the easier it is for lawyers to descend upon you. It's a self-defeating framework.

2) google and specialized video-only startups are simply doing a much better job than they were.