Is multiplayer crippling Mario 3D World's level design?

[brute]

JWeinCom said:

http://www.youtube.com/watch?v=AOsGbb-Kd-U

Please show me these big barren areas your're telling me about.

That level looked great, but it still pales in comparison to the creativity of the Super Mario Galaxy 2 levels.

I have no doubt that the game will be great, but I just feel that it will fall short of Galaxy's quality, I really hope I'm wrong but it seems unlikely that I am.