It sounds better at $30/min. Still stupid expensive, so it better deliver. As of now only tech enthusiasts are using it to say "haha look what I made".
But when these video generators are more fleshed out they'll be competing with stock videos, and likely are now. The value proposition is there if you're a company buying custom imagery from professionals. Exciting to see how this plays out.
You may regenerate your video if you watch 10 minutes of other people's failed videos, and take this survey to gather your opinions of how they could be improved...