Its good that Nintendo has the ear of a company like Ubisoft instead of that of the fans that tend to roam the forums. The gist I'm getting from Yves is that its not Ubisoft job to sell the Wii U on the merits of its biggest selling feature, and that is making games that utilize the gamepad well. ZombiU, Rayman, the upcoming Watch_dogs, Splinter Cell Blacklist, games from EA like Need for Speed , Warner Brothers in Batman have used the pad better than any Nintendo game for the system.
Ubisoft is no fly by night company, especially when it comes to creating successful games on the Nintendo platform. From Prince of Persia in the GC era, to Just Dance and Rabbids on the Wii, they tend to follow the same philosophy (for a segment of their games) when it comes to creating games as that of Nintendo, accessible to everyone, pick up and play. Ubisoft tends to have awesome ideas for games and as a Wii U owner I would want that trend to continue, but Nintendo needs to start picking up the slack on the sales side to make the Wii U desirable to the mass public, not just a machine for Nintendo elite.
There is no need to bring the Xbox one into this discussion as the time on the market for it is just a blip for them and in that time, Microsoft has drastically changed the system to make it more approachable to developers and consumers alike.