I have not seen the commercial, but I would like to underscore what has already been brought up regarding quality modeling, rigging, animation, texturing, lighting, etc vs. substandard artistry. Sure, Mickey & Co. may be more well suited overall for 2D, but I believe it is quite possible for them to look great in 3D. If Disney was willing to pay out the bucks and sign on the right talent, it would be great.
Mickey's Twice Upon A Christmas was, well, pretty good (with a few exceptions!) Philharmagic was (mostly) fantastic. Those screenshots, however, looked pretty awful to me.
My point: It doesn't have to be bad. These generalities (2D vs 3D) are dissappointing.