Wait, do you HAVE to look back and forth at the gamepad and TV, or are you able to use standard aiming?
I heard some Nintendo fanboys say its optional but Peter Brown at Gamespot was only demoed with the two screens and his reactions where very negative:
"Where's the Star Fox I know and love? Maybe it's hidden in there somewhere. While Nintendo is going all out to promote the new GamePad controls, I'm holding out for an option to play with the Wii U Pro Controller. That option would impact the aiming system, and therefore balancing and level design, but it would also mean that people who have been playing Star Fox games for decades can simply jump right in and have fun. I want enemies, environments, and boss battles to stand between me and victory, not the controls. I can understand why Nintendo is so keen to sell the GamePad by designing games around it, but as someone who already owns a Wii U and just wants to play Star Fox the way I always have, I hope I have the option to. Otherwise, Star Fox Zero may not be the game for me."
http://www.gamespot.com/articles/hands-on-with-star-fox-zero-s-gamepad-controls/1100-6428208/Monitoring two screens sounds like a unneeded hassle. Also you know your philosophy is fucked as a game designer when you degrade the art in your game to make your gimmicks work better.