Because it was, it looks like. User seems to have last posted 2 years ago.

I remember this, was it really 12 years ago? The one person that made the 2AM Ice Soap Chili too

Does it hide audio/video cuts maybe? Or maybe it's emulating the style of older vlogs when they'd constantly cut between words, but it's not as disconcerting because there's some level of continuity. I've definitely noticed it before and had the same thoughts.