By casual games I obviously mean games like Just Dance and Skylanders!
My point still stands. You may not particularly enjoy those two games, but that doesn't devalue them. And since Ubisoft have openly been supporting the Wii U with Just Dance, we can assume pretty comfortably that the games they aren't releasing are different from it in nature, even though at least one is still "family-friendly" (read: not bloody/gory). I'm betting that one is a Rabbid game, by the way.
Considering that their best-selling title on the Wii U has been ZombiU, and the next three are Rayman Legends, Just Dance 2014, and then Assassin's Creed 3 (coming before any other Just Dance title, and AC3 has sold nearly as well as JD2014), I think it's reasonable to say that Ubisoft probably wouldn't keep making Just Dance on the system, but ignore games more like Rayman Legends, ZombiU, or Assassin's Creed.