didn't get it when they ripped off the photos and videos for their AI.
If you want to ask the YouTuber making money from theft, you'll have to ask him directly. He isn't likely to be aware of your asking such a question here.
But it would be major news if any such creator had formally requested permission to use an actor's likeness for AI slop like this, and this AI-using fake artist would also have needed a lot more permissions than that one. Something like that would get media attention from publications like TechCrunch and The Verge and would be cited a lot in discussions of AI and intellectual property rights.
And you can bet the AI fake artist who created that clip would have boasted that he had permission.
The AI companies have already admitted they simply ripprd off whatever they could get their money-grubbing hands on because it would have slowed them down too much to get permission and cost them too much to compensate the intellectual property owners. That was the original theft. Many of the people using AI text and video generators to amuse themselves and pretend to be creative might have little or no idea who the actors being copied are.