...there were more wii u owners when the game came out. If it was that good and didn't release on switch it wouldve still been a system seller for wii u right?
iirc nintendo also delays the original system releases and releases on the new platforms first so that didn't help either likely. But yeah had it been an exclusive like skyward sword was on the wii then it might have boosted wiiu sales a little. Probably not by much.