At least he seemed genuinely surprised and excited by the Switch. Unlike his Super Mario Run farce.
But in general, that was pretty good marketing from Nintendo.
I found the exact same explosion running on Wii U hardware, which makes for a perfect framerate comparison. It shows that at its worst, the Wii U has 1/2 the framerate of that on Switch. Let's hope the Switch is a good deal stronger than the U.
https://www.youtube.com/watch?v=Yn9JL8mKdVw