I don't think it's really promoting the video, but more showing people who to stay away from.
It’s easier to stay away from something you don’t know exists. That’s like saying “Taste this! It’s awful!”
This is only going to drive more traffic to the video
If you want to provide a video for criticism but don't want to drive traffic to the site, you could copy it to a peertube instance. Peertube can just slurp a video right off youtube and start hosting it. Of course that is its own moral pickle. Criticism is fair use, but it's more complicated than that, and legal doesn't mean right.
Yeah I’m definitely not giving this dude views.