from the start, i'm under the impression that filmers had a taste for cinematography and all the "tricks" that comes with it (Super 8,etc.). these shots can help pacing clips when editing, having a structure / phases in your video, etc (like in the ishod part, it goes with the song ending)
i'll admit that there have been eras where some of this tricks have been used too much (mid/late 2000s with the film burns).
But cinematography (art in general i guess) is always torn between use of recent technologies and nostalgia of older technologies
https://en.wikipedia.org/wiki/B-roll