"Making AI edits to videos" strikes me as as bit of an exaggeration; it might lead you to think they're actually editing videos rather than simply... post-processing them[1].

That being said, I don't believe they should be doing anything like this without the creator's explicit consent. I do personally think there's probably a good use case for machine learning / neural network tech applied to the clean up of low-quality sources (for better transcoding that doesn't accumulate errors & therefore wastes bitrate), in the same way that RTX Video Super Resolution can do some impressive deblocking & upscaling magic[2] on Windows. But clearly they are completely missing the mark with whatever experiment they were running there.

[1] https://www.ynetnews.com/tech-and-digital/article/bj1qbwcklg

[2] compare https://i.imgur.com/U6vzssS.png & https://i.imgur.com/x63o8WQ.jpeg (upscaled 360p)