Well since the Wii U is on a whole nother level in terms of specs and available games, people don't really include it.
It's getting harder and harder to ignore them now, with the release of Mario Kart 8 and Super Smash Bros. 4 will be released this year as well. Along with a new gorgeous looking Zelda game, a new star fox game, and also a new Xenoblade Chronicles game. It's a good time to be alive.
Excellent point.