I had a (former) manager once respond to an email to a client with AI. Which obviously happens a lot. The problem was that he forgot to take out the beginning part:
"Manny, Here is your drafted email response to client."
As far as AI slop in video format, I'm glad it is generally terrible and you can tell. When it becomes good enough that you can't tell, we will have crossed the Rubicon. All manner of bad implications will follow when you can no longer claim 'seeing is believing'. I know we've been historically along this path since the first photo or video was manipulated, but this seems like it will be orders of magnitude greater.