I think you’re grossly misunderstanding the argument. Nintendo trying to innovate is exactly the problem! They are no longer good at coming up with compelling new controller schemes, and end up gambling it all on impractical gimmicks.
Now, there’s nothing wrong with trying to innovate a bit. Sony and Microsoft also try to do it occasionally. They aren’t any better at it. For example with the DS4 Sony’s stupid gimmicks were the built in speaker, the light bar, and the touchpad. The first two hardly get used, the third basically gets used as a digital button rather than the sophisticated gesture-aware control surface it was intended to be. (And yes, the DS4 does have a gyroscope and an accelerometer; but again software doesn’t make any significant use of them. The motion features of that controller might as well not exist).
Out of the three most recent console launches, we’ve had two whose failure was at least partly based on controls. The Kinect made the XBox One absurdly expensive. That system was basically dead in the water until they finally took the Kinect behind the shed. The Wii U also remained grossly overpriced all the way to the end. The reason for that can only be the game pad, since all the other technology in it was ancient.
And now Nintendo are again launching a console that’s considered overpriced compared to the competition. Judging from the price of a pair of Joycons, a big part of their cost problem are the controllers. And to make the problem even worse there’s the screen. They’ve come up with a scheme where everyone has to pay the cost of the touch screen, but games can’t be built around any kind of significant touch screen functionality. It’s the worst of both worlds.