This more than anything so far makes me doubt Nintendo's true understanding of their situation. I do not want another "Wii Motion Plus". If it doesn't work like it's supposed to out of the box, it isn't a feature that your device has. As far as I'm concerned, the Wiimote's real issue was how difficult it was to properly point with the way their sensor worked. It could have been better than auto aim, if my targeting didn't fly wildly off screen every time I left the sensor's limited range. Even light guns worked better than that.
Of course, that was the WiiMote's primary function. This is mainly supposed to be a second screen for gameplay usage. I can't say I'm too concerned with a factor I didn't like in the Wii gameplay now not being a factor in the Wii U gameplay. I'm sure this is disappointing news to some, and rather arrogant to say they will just program around it. Nintendo needs to remember their are OTHER people that develop games, and their support is also necessary to succeed. I can appreciate the honesty though. Sony probably would've just promised the feature and when it didn't work, shrugged it off and said it's no longer a feature.
But really... how much more would the better sensor cost? I wouldn't mind paying an extra 10 if the feature is built into the controller, but I don't like playing to have to stick some extra dongle in a port just to get slightly better functionality.