I gotta say, even though it never caught on, I loved how some games used the WiiU game pad. Off screen play was fine and dandy but Arkham City, Pikmin 3, NintendoLand--there were games using the controller in ways that really impressed me. They captured my imagination.
In the end, I guess it was a failed experiment but I feel a little sad knowing I won't have my "tools" instantly accessible on the controller. I won't have my maps. In that regard, the BotW will always have be wondering "what if."