Splatoon did fine. And it'll be inferior to motion controls, so why not learn them?
Using your own body is not as accurate as using a controller...
...according to some people.
I remember people having this debate in June 2014 about Splatoon and Gyro Aiming and then I was the first person at EGX 2014 in September to play it...it worked fine.
Played ARMS the week before the Switch came out and had no issues with using the motion.
But some people don't like change.
I mean, can someone show me a game which maps Left and Right arms to each Thumbstick and it works well? As in "Gee, this game tracks my swings so accurately I wouldn't need motion at all!"