Kinda funny that people were like ''Switch getting a port of a Wii U game'' and writing it off as a joke, they werent wrong saying this, but now that an old Wii U port didnt move consoles, they're suddenly surprised and acting like it was supposed to move systems. Can't have it both ways and use it when its most convenient xD
If anything It doesn't shock me at all that the game didn't do much for Switch. One of the reasons I didn't pick it up again because its just an ehh game and not worth a re-purchase for me, if you've played it on Wii U, you've already played this and if you've played any of the NSMB series in general, you've already played it. It will prob sell well to the current Switch userbase but no one will pick up a Switch just to play it.
As far as the numbers, Switch once again ahead, they've been ahead for awhile now, but this will change come mid/end January with the release of RE 2 and KH3. Due to Nintendo currently squandering early 2019. I can't see PS4 losing WW on a weekly basis after Mid Jan, PS4 will control most of 2019 unless Nintendo gets back on the ball.