Well the DS was a big change and people have embraced that system beyond all expectations.
Creativity is limited by hardware and a pad (which Nintendo invented some 20 years ago) suggests a certain way of doing things. Just like the previous joystick with a couple of buttons limited what games were possible.
There is so much more to the controller than just being a TV remote , but it's down to the developers to bring that out of the system. It will be a challenge. But that controller really does have the potential to revolutionise how games are played. Just like Nintendo's original multibutton controller did at the time it was released.