Ouch. I've got no real problem with arps, drum machines, or any DAWs that make it easier for the average person to make music on their PC, but...I'm a classically trained musician, and I couldn't help but cringe when I read that. I'd say this - the guy's making music, good for him. Whether or not people have musical ability and talent will show in their music, and if DAWs are dumbing down the stuff that's out there, then good music will sound even better in comparison.
Still, I think people should learn to play an instrument before composing music. Otherwise it's like someone who's never driven a car designing a racetrack.