That would be the dumbest strategy in the world for Nintendo (IMO). Who cares what a bunch of jaded "hardcore" stuck-in-the-mud gamers think? Nintendo has always been about giving Casual, Hardcore, and Bridge titles so everybody can get their fair share of gaming experiences.
And motion control has been proven sales and quality-wise. The Wii line-up, along with all the other huge salers that involve motion controls. Then we have titles like Shattered Memories, Red Steel 2, and the upcoming Skyward Sword which are (or will be) high quality titles that NEED motion control.
Causal gamers, lapsed, and non-gamers will never ever be able to play with a Dual-Analog setup. It's too complicated, awkward, and stupid. Hell some people barely can still use the Wiimote.
Nintendo should be building upon the Wiimote, not acting like it doesn't exist.