That's exactly what I was thinking of when reading people's discussion of the Wii U Gamepad. Both Wiimote and Gamepad shouldn't be forced onto games that are better off with a more traditional controller.
And on that note, I'll be looking forward to the 3DS Smash Brothers whenever it comes around. Brawl's controls responded poorly compared to Melee, and I think anyone can guess why. And yeah, I know there was the classic controller, but I didn't have that. It's shameful that the lead developer recommended people use a peripheral controller rather than the console's main controller. He must have tried playing his own game with the Wiimote.
I say that as someone who loved the Wiimote when it worked. Resident Evil 4? Okami? Metroid Prime 3? The Wiimote was perfect. Twilight Princess, Smash Brothers Brawl, Mario Kart (unless you had enough wheels for everyone), not so much.