Nintendo Land is a demo and a "Nintendo Land 2" has been long overdue. I'm tired of playing the same minigames over and over and over again more than two years after launch. It gets boring after a while. Game & Wario isn't even a good game to begin with and Rayman Legends was better on PS4, in my opinion.
Have you ever played competitively? Do you use techs in games like Smash Bros.? Do you practice things like perfect pivot? I'm on my 3rd GameCube controller as I'm writing this and it's been a glorious ride. I love it. And I keep buying more controllers because I wear them down especially in Smash Bros.
It takes 2 minutes to post a screenshot to Miiverse from a suspended game, exactly what makes you think the Wii U is good at multitasking? Try a PS4 or Xbox One if you want to see multitasking at work. I highly doubt the Wii U would then be able to have Netflix running alongside a game, if it can't even do that when a game is suspended at the moment.
Sure, as would I if they had a killer app for it. But I'd also like Nintendo to support their other and forgotten controller more. If the Wii U GamePad was ergonomic and light, I'd pay $100 easily, but it's just not a good experience for me. Not when I'm down to play 8 hours straight in a marathon. (Which I'm planning soon for EarthBound.)
Tech demo or not, Nintendoland is really fun, I've gotten way more replay value out of it than I ever did with Wii Sports or even Wii Sports Resort. I like Game and Wario a lot, I know some people don't, but I have a lot of fun with it. Rayman Legends plays fantastically on the Wii U, whether or not it's superior on the PS4 is irrelevant, its still a fantastic fun game with a great example of asymmetrical gameplay.
I'm pretty competitive in Smash, not the best, but me and my friends love it and try to perfect out strategies and junk, though honestly I prefer the portability of the Wii U pro controllers over the comfortability of the Gamecube controllers. As such, even though I've had these Gamecube controllers since the Gamecube era and they've been used relentlessly in Melee and Brawl, they don't get too much play on my Wii U. They've all held up phenomenally, I will say that.
I say that multitasking could happen because Nintendo stated that an update would come in the future to allow it. Maybe it wont ever happen, and maybe if it id, it would cut any game's framerate in half to work properly, but I mention it strictly as a possibility, if it could be done, I'm sure Nintendo would find a way.
I don't feel like the Wii U Pro controller is "forgotten" most games for the Wii U support it, while you can't use it to navigate the Wii U or Netflix or things like that, it certainly gets utilized in the majority of the Wii U games that I own.