I'm glad to see I'm not alone in this. I mean, what if Mario Kart Wii didn't have 'Cube or CC controller compatability to begin with? You'd have to use the Wiimote or the Wii-chuk combo anyway, so why bitch about it?
I think stripping certain features off the GC and the CC is a good idea - it acts as an INCENTIVE to use the stuff that came WITH the system.