Odd list IMO.
Skyward Sword does show how good motion control can be I guess, which I suppose could be called a success.
Mario Galaxy is a success in that it is a dream to play through the first time.
In terms of Nintendo's successes of the generation though, I think the list should have been Brain Training, Nintendogs, Wii Sports, and then choose your pick for one of the Mario Karts and one of the New Super Mario Bros.
Actually it is hard not to add Wii Fit to that list... between them those 6 games have made an enormous impact on gaming this gen (I guess for impact it should be the DS versions of MK and NSMB)








