What Is It About Super Mario 3D World That Doesn't Make It a "True" 3D Mario Game?

[DélioPT]

I think this is just another form of a 3D Mario.
I too would like another Mario 64 or Sunshine, but i have no doubts this will be as good as any other 3D Mario - or 2D Mario, btw.

I still think there´s a whole lot more than Nintendo is showing.