why is Just Dance 2020 on Wii but not Wii U?

It's so f-ing annoying whenever i load into a mk8 match and pick wrong kart, so i go back, change my kart, then go back, all good, RIGHT?? WRONG. Most of the time it loads me into spectator mode and they just started the race!! Has anyone else experienced this???

Anyone wanna play? my wii u friend user is Eliasisbest.

who tryna play

I wonder when pretendo severs would work with just dance severs like online battle mode. I hoping they could do it.

nsmb u > nsmb wii

New super Luigi U is better in my opinion