They respond to the fact that it's a great record. Ultimately, the categorization is a convenience for communicating about music and it's necessary. I don't see how we can get along without it. I don't know a single artist that I've ever met or talked to that was satisfied with the category they're in. It has such unknown origins.
Most people are really unaware of how it really originated.
It had a therapeutic value. It was sold in health food stores as part of a whole other type of experience different than pop music, different than classical music, different than jazz. It was a whole other aesthetic. In other words, it didn't matter so much if the music was competent, virtuosic or sophisticated. What mattered was that it did achieve a therapeutic result.