I wasn't aware that there was a nunchuck option for DKCR either. That makes the lack of a classic controller option even more bizarre.
Had I known about that option I would not have used it though. Given the choice between a D pad (a Nintendo one, mind you) and an analogue stick for a 2D platformer, I don't understand why anyone would choose the latter. Using an analogue input to control something which is in fact digital (i.e. left or right) just seems wrong to me. Dragging the stick from one side to the other just isn't as immediate as using a button press.