This is a little disappointing, but not surprising. It's just the way that Nintendo does backwards compatibility. The hardware switches to compatibility mode and disables all the new features of the hardware/firmware, as seen with GBA games on DS, GC games on Wii. Nintendo would rather build in 100% BC with no new features than go through the hassle of ensuring the new features work with all software (see Xbox 360).
I had always wished I could play GC games using the Wii's own memory storage and classic controller.
"The worst part about these reviews is they are [subjective]--and their scores often depend on how drunk you got the media at a Street Fighter event." — Mona Hamilton, Capcom Senior VP of Marketing
*Image indefinitely borrowed from BrainBoxLtd without his consent.
