Dude, I've taken plenty of anatomy and physiology classes, exercise physiology, motor control, ect.. But that doesn't make me some kind of authority on bodybuilding just because I know quite a bit about how the body works. It does give you an edge, of course, but as I recall, they didn't hit bodybuilding much in my anatomy classes or physiology classes (15 credit hours worth of just those devilish classes, so yeah, I've been there), and a lot of the stuff they taught me in exercise physiology wouldn't fly if you were talking to an experienced bodybuilder. And classes like motor control didn't help me improve on my lifts just because we learned the mathematics behind how the body moves.
So yeah, you really can't pull that card, since you don't "have" to know that stuff to build a quality physique. For instance, you have to know how to do a deadlift or squat the correct way for it to be effective, but you don't have to know all of the mechanics and physics behind it, or what's going on at a microscopic level for those lifts to be effective.
And for the record, I agree that fitness magazines are mostly crap. Their primary focus is selling products. Best to learn from forums such as these, research articles, and personal trail and error.