He's not criticizing it...He's just saying it's not music.

In this short piece on Spinner.com, Moby uses semantics to reclassify Top 40 artists like Britney, Rihanna, and the Black Eyed Peas, not that he's being critical of them:

"It's fun, but I don't think of it as music...That isn't really even a criticism, but I just think calling it music is a misnomer."

His seems to be an opinion based on authenticity, a notoriously compelling yet nebulous concept in music. Emotional integrity is what gives music its "real-ness," he seems to be saying. This pop stuff might be fun, but it's not "real" music. And if it's not "real" music, then it isn't really music at all.

Then what is it? Moby's answer: "a pop culture phenomenon."

Thanks, Moby! Our sandbox is once again fortified against that dreadful dance-pop. (Oh, wait...)