This may not be necessary, but I just want to again go on record as saying that I don't see the need to view this as a referendum against Mario. The numbers on the 3DS may not match the soaring highs of the Wii or DS, but they are still solid. I really don't see why anyone would view this as anything but a referendum against the Wii U.
Because many people are invested in the whole Nintendo going third party narrative. And because GAF loves hyperbolic statements that they will never have to back up or get called on. Thats just how system wars works (see the Vita for similar shit). Next thing we will have the Nintendo is for kiddies argument coming back.