Because people got a Wii U on release for christmas, and still haven't got a PS3 in the last 7/8 years it's been out so they're like
"OMG JUST PUT IT ON THIS BECAUSE
I HAPPEN TO HAVE THIS CONSOLE INSTEAD ITS SUCH A GREAT SYSTEM AND OBVIOUSLY SUPERIOR TO THE XBOX WHICH IS OBVIOUSLY NEVER HAPPENING"
It annoys me. I love Zelda games, mario games, smash bros and would like to play some on the Wii U (or Wii, I don't have that either) when it comes out, fact of the matter is I don't have and won't be able to affford a Wii U, but I don't go around whining everywhere "OMG PUT IT ON THIS INSTEAD FOR ME"