Ive been drumming for bout 5 years now, and you get to a point where you realize, the faster and harder you play does not correlate to how "good" you are. In fact, the majority of people who just beat the drums up sound the worst! Theres SO much more to it then that. Barker is quick, and can play a punk beat better then most, but thats about where it ends. Listen to some good funk drumming, theres alot of "feeling" and technique that takes so long to learn, and more importantly, understand to be able to play it.
BTW, im not calling myself some all-knowing rock god. Just saying from my point of view.
-fb