This is wild, but I definitely see this being a thing. Already YouTube allows hiding like/dislike counts, and its used frequently when a company puts out a video that is overwhelmingly disliked, but people who are new to the content wouldn't know.
"Comments are disabled for this video" is the 21st century red flag for "this video is dogshit and controversial but the uploaded still wants the ad money / view count".
I'd entirely disagree. Anything to do with politics brings out the creepy-crawlies. Look at the comments on any news orgs videos. All conspiracy theory and bots. Go to smaller channels with a non-political or economic niche and the comments section are actually nice.
I wouldn't trust any Facebook operation. You know what they try to maximize