Indeed. Nintendo's output on the Wii U so far has been utterly top-notch (even if there have been droughts. There always is with first party line-ups on any console. We're just noticing it more because of lack of third party) and this seems to exceed that. I have already been questioning the gaming industry's current status at dismissing fantastic games just because of the hardware (even then I don't believe the Wii U is as bad as certain people make it out to be, sure it has issues but it's by no means bad). If Mario Kart 8 doesn't do well, then the industry has changed to something that I don't like.
Anyway, on topic, I like that video, it's the small things you notice. Like with GBA Mario Circuit, as it's showing you the level, you see the big ramp bit being raised into place. Beautiful.