Brady,
I agree with you. For me personally, however, I started playing by reading the books that told me to turn to start the backswing and take the triangle back. This put me very flat and under plane. I have to think about keeping a responsive pivot and directing my hands more 'out' to get the club to have less around and more up. I just think that since the pivot can only give you an 'around' and 'back' motion that it is better to have some direction from the hands to lift the club up to where you need it. Your point is well taken though and for the players who know where they need to be at the top, probably more consistant.