I know it's really really loud in your echo chamber but short form videos are extremely popular.

He didn't say they weren't ? He said youtube keeps recommending 'cringe' shorts no-one wants to see. I can sympathize with him - I have the youtube recommends the same 4 videos over and over again in multiple categories issue, and the 'lots of shorts I don't care about issue'. Though, shorts at least get refreshed/rotated more often then the stupid suggestions.