Besides, you can play a decent amount of games on the Wii U with only a pro controller if the gamepad weren't required to navigate the start up menu, which could be easily patched.
Actually, you don't need the gamepad to navigate the start up menu. When in the start up menu, turn on your Pro Controller and Press X to swap the TV with the Gamepad screens. The left stick becomes a finger which you can use to select things similar to using the stick on the Guitar Hero Guitar for the Wii. You still need the Gamepad for things like Miiverse, but to go straight to the game, it's not required.
They need something besides Amiibos to pump their image.
Unfortunately, the Amiibos are the hot, new thing for Nintendo, and the Gamepad is the only way to use them on the Wuu.
Edit: They should drop region locking.
That's something we can all get behind.
I remember once, a while back, hearing something to the extent that the Wuu would support up to 2 Gamepads, though it'd only come with one, and eventually you'd be able to buy a second. This never came to fruition, but if it had, I believe they would have eventually released a version of the Wuu with a Pro Controller instead of a Gamepad, and just have certain features disabled until one gets linked to the console, ie. Miiverse. But yes, if they provide consumers with a version that does not have a Gamepad, the few 3rd parties that develop for the system will just stop all focus on the Gamepad, with very minor exceptions.
We do need more games that really take advantage of the Gamepad, but those games are almost always going to be single player games. Nintendoland proved you can make games that are multiplayer and use the Gamepad uniquely, but as far as I can see, it's the only game that did so, until Kirby's Rainbow Curse.