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

[brute]

zorg1000 said:
Im pretty sure Miyamoto said the 3D Land/World series is a completely new series, different from the NSMB and Galaxy series which will both continue as well. So now we have 2D, 3D and Galaxy series, nothing this game does will affect the "proper" 3D Mario games.

The only way that I think this would effect the "proper" 3D Mario games is that if this sells a lot more than them, that way we will see more releases of these types of Mario games.