Why does the Wii have so many terrible games?

I’m not particularly upset about Nintendo’s shift towards casual gamers. Wario Ware, Animal Crossing, and Mario Kart are all awesome series and if I need a second console to play long jRPGs then so be it. Even if expanding the market somehow eliminates niches that are occupied by Japanese RPG developers, which seems counterintuitive, there will still be more good games than I have time to play.

What upsets me about Nintendo is how they allow publishers to use the Wii as a toilet. Boogie could have easily been a good game but it seems EA just gave up halfway through development. Sega had an unknown (to me at least) developer work on their Alien Syndrome game. The best way to pay homage to an arcade classic and to revitalize a franchise is not by making a mediocre game. →  The gamers have only interpreted the games, in various ways. The point, however, is to change them.