I stopped reading after the nurb question. This interview sounded really fake. No developer is going to have 100% great things to say about any of the systems unless they work for one of the 3 companies. That is just fact. There is always something to critize.
Now, could Nintendo figure a way to update the graphics on some of there games? I don't see how anything is possible with the 2D sprite based games, except for maybe making a smoother, and less pixelated mode 7, for Mario Kart and F-Zero. Anything else sprites have to be replaced completely. Presummably Nintendo I guess could have had artists go back and redesign old 2D artwork and animation schemes, but that wouldn't benefit SNES games, because they were already good...only NES games. Is that worth it?
Now N64 that is completely different. Nintendo could have some software inside to change the look of the polygons...perhaps make them higher resolution. Or throw different shaders on them to fleshout the look of the world. I could even see something to make the games look Cell-Shaded...but again why would Nintendo need to do this? And if they did, doesn't that make the game alittle harder to get into?
Anyway, it doesn't matter because its fake.