This seems to be the case for nearly everything I can think of, that gets exposure to "the mainstream". For some reason, the 90's were just the pinnacle of cheese and over-saturation, which led those arteries to get so clogged with bullshit that the entity as a whole ended up dying. Once that last breath was heaved, the maggots; the groups, acts, bands, writers, etc that we see today, started to infest the corpse - feeding off it, and at the same time destroying what once was.
Naturally there are still people who "defend the faith", but you'll notice they are not worming around in the husks of the great ones who came before.