The problem is that most people don't know how to archery. You can't strafe with a bow, but too many people complain that it's not working like CoD. I think it worked great in earlier versions, I hated the WWHD method, even with the Bow assigned to R.
Actually, I think Wind Waker made great use of the touch pad for inventory interaction, it was really nice not to have to stop what i was doing or pause the game to switch weapons or items, especially while sailing.
Also this isn't so much a game pad worry as a control scheme worry, but I...