Was Nintendo's 2008 flop of a lineup merely an issue with perception?

[Ail]

Nintendo released it's top 4 best titles in like a 8 months period ( Galaxy, Wii Fit, SSBB and Mk Wii) and while it sure helped the Wii sales a lot it's still not always a good idea to play all your good cards so early. And aside from a Zelda Wii I don't really see what title they could still have in store that could be as big as those already released....