Mkw has become like mk8 now?
afaik, the only controller that gives some kind of advantage is the Wii Wheel on MG.
Aside from that, NONE of the controllers give some advantage speedwise or makes you get a better time easier.
Mkw controllers are not like mk8's. And besides, dpad/wheel users aren't even banned on the mk8pp, so why should we ban all the other controllers for mkw while none of them give some kind of adventage compared to mk8? (Again, except for the mg glitch with the wheel)
Indeed, Nintendo advertised mkw heavily with the Wii wheel. But that was just because they wanted to show how well the new inovative motion controlls of the Wii work on mkw.
What Nintendo wanted to tell us was:
"Hey, please use the Wii Wheel! Try out the new motion controll feature for mkw! But if you don't like it, we have a whole assortiment of other controllers you are free to use!

Please enjoy the game!"
I guess OP was a troll/not serious. Well, I realy do hope so... :')
But if not; please do more research in mkw next time