Talking heads with zillions of cuts

Why are there so many videos around these days that show a person talking to the camera with cuts every second or so? I thought it was bad to cut to an identical shot. The cuts are often between sentences or even between words, and the head of the talking person is constantly snapping from one position to another (with similar jumps in audio). Sometimes it's clear that only a few frames have been removed. I can't see why these cuts are necessary. Surely speakers can complete a paragraph without needing a retake?

Is it a fad? I thought this was something that is never supposed to be done ... the sort of thing that Benny Hill used to make fun of in sketches about continuity errors. I know Max Headroom was edited this way, but I think that was intended as a joke. Why are so many people doing it now? And is this a choice being made by editors, or directors, or talent, or who?

Perhaps I'm missing something, but it looks really dopey to me. Am I just out of sync with the rest of the world?