Most music is extremely repetitive; it's not like they usually play prog rock for grocery store BGM.

(Well, recently I was in a Whole Foods and they played Once in a Lifetime, which is at least a little different…)

Repetitive and awfully loud, at least in clubs.

Few people mind repetitive low volume music.

EDM is an extremely diverse genre.

Do you have some links? The stuff I've heard is the stuff they blast in night clubs and all I remember was boom - boom - boom - boom for minutes on end.