This filled me with glee. I just very recently reported some of their videos. Many of their videos were "look at this highly edited body cam footage, we did good", which is to be expected, sure, but they also didn't allow comments (which if I understand correctly is illegal/unconstitutional).
Sure, I also hate youtube with all it's dark patterns, but... it's nice when the devil takes out a demon?
I don't feel like finding it again but I did go on to loosely clarify (by skimming an ACLU blurb) for myself that the distinction is they can't pick & choose comments to allow, but disallowing comments entirely isn't so much the issue.
There were a couple videos that they didn't disable comments for, I assume unintentionally. It's maybe ironic because even if the comments on their own channel are mostly negative, they're probably not as negative as the bulk of comments on any other video on them. So the overall there is going to be less positive feedback.
About your parenthetical: not sure the recent cases about government officials blocking people on twitter applies here, at least straight-forwardly. E.g. it's not illegal for whitehouse.gov to put up press releases without a comment box. It seems like the twitter cases had more to do with choosing to deny comment from certain people, when comment was open to others.
