You can have too much of a good thing and it's rock 'n' roll suicide
Rock music is more comfort food now than anything else. Very little out there makes the kind of global statement that would have a whole generation tuning in and dropping out at the same time.
That sense of the great collective experience is long gone.
Downloads have killed the album as a concept, anyway, and newer guitar bands tend to be either so blatantly derivative or samey that they leave no sonic footprint.