well okay my conclusion may be:
They dont even care about the millions they could make on wii u .
If im right and they earn 20$ per sold game (seems possible) this may be 4mio on a wii u. Yeah.
but if they sell 9mio on ps, thats 180mio. ~360mio xbox and ps combines.
So if your doing buisness with those high numbers, you pretty much dont care of getting 1 or 2 millions on a wii u version.
To be honest, seems overbearing to me. Its like the money just lay on the ground and they dont care, because its just some millions....