I wouldn`t be concerned. The bundles clearly shows that both products are not bundled.
My fear is too much Mario!

Here's this year's 3DS holiday commercial:

http://www.youtube.com/watch?v=nORgM4lpslk

They sure are pushing hard for the kids market now, I think Nintendo fears the impact of smart devices on the kids market more than anything else.

"But we already have a Wiii"

"WII U IS A TOTAL UPGRADE, BROTHER"

Finally they show the difference between Wii and Wii U! And the commercial is pretty funny too! :D
And people said Nintendo doesn`t know how to do commercials...

Americans don't know the difference between Wii and Wii U?

HAHAHAHAHAHA!!!!!!!!!!!!!!!!!!

the advert was good and colorful but to ask people to upgrade in a tv add is desperate imo and spoilt it

the Wiiu should be advertised for what it is, i watched the start of an old E3 where reggie talks about the Wiiu and what the word for "U" meant, we want to see advert for the "U" crown and not just the "Wii" crowd

Bloody hell hahahhaha shows you where the Wii U is at. The 3DS caused no where near as much confusion.

Btw, zelda commercial is waaaaay better than 3D World. I get why they're doing that though, they need to highlight that Wii U is not the Wii.

3DS commercial is way better btw, it's a good family commercial. 

http://www.youtube.com/watch?v=nORgM4lpslk&feature=share&list=TLFpClwLo2oC1ONJayfZYmiTlire0Gtwwc

Wii U now bundled with hot buttered popcorn -- what a deal!

It pains me to say it, but that wasn't an entirely convincing explanation IMO. Don't mean to sound like a cynic, but I can see this just as easily backfiring.