Is it selfish to not care if this game gets a wiiu port? It's coming in 2017, won't the NX be out sometime shortly after that? Not to mention a port like that would probably come out delayed from the initial release.
No, it's not. A port to a console that doesn't support the game's primary engine shouldn't be inherently expected. It would be really selfish to be upset with a Wii U port existing, but from looking at the comments of people asking for the port ("put it where it belongs!"), I'd wager most of them have have alternative means to play the game.