We can't do narrative sequences with persistent characters and settings, even with static images.

These video clips just generic stock clips. You cut cut them together to make a sequence of random flashy whatever, but you still can't do storytelling in any conventional sense. We don't appear to be close to being able to use these tools for the hypothetical disruptive use case we worry about.

Nonetheless, The stock video and photo people are in trouble. So long as the details don't matter this stuff is presumably useful.