It wasn't that long ago that some Nintendo fans were talking about boycotting the next Rayman game. I guess the EA situation calmed that kind of sentiment down pretty swiftly.
The problem with the Wii U, from a business standpoint, is that the multi-platform titles being produced right now are for the PS3/360. Relative to those platforms, the Wii U installed base is not only close to insignificant, it also likely has a high level of redundancy, meaning that many of the owners also own a PS3 or 360. In business, redundancy means lost money. Honestly, if I had a game development studio, I don't know if I would make the investment to create a Wii U version of a PS3/360 game. It really makes very little practical sense and, for most titles, will probably offer a lousy return. I'm not sure anyone should really hold it against a developer for quietly passing on the Wii U.
Moving into the next gen, the Wii U faces another problem, in that games might eventually move beyond its capabilities from a technical standpoint. I think that's why Epic basically said the Unreal Engine 3 is good enough for the Wii U.
Still, the real litmus test for the Wii U will be if it gets NEXT gen games, not PREVIOUS gen games. Publishers producing PS3/360 ports for the Wii U really aren't helping their bottom line much at all, and it should probably be seen as a kind of favor to Nintendo and Nintendo gamers. Or perhaps they're just trying to build the platform, or build positive PR.
There is a real chance that the Wii U will mostly be a Mario box. That's not necessarily a bad thing, as many Nintendo fans seem fixated on Nintendo games. Despite what some people want to believe, this has a lot to do with choices Nintendo made and is very much their responsibility. The business world isn't a charity, you can't expect people to step in and make your product a success for you. You have to give them reasons why they should, something which Nintendo hasn't shown much interest in doing until recently.
I still think the Wii U will be a modest success, but I also think it will show that the baseline for a Nintendo console is closer to the GameCube than the Wii. Again, there is nothing wrong with that, but most of the responsibility does go to Nintendo.