I do wonder how much of a cut Tencent is getting in China, seems Ring Fit Adventure is a smash hit there and Animal Crossing isn't doing too shabby either. According to recent articles Switch is catching up on the PS4 and demand is growing. Due to China's strict censorship and Nintendo's nonoffensive nature, a lot of their titles get released there. The video game market there is set to grow considerably in the coming years there. So if South Korea is contributing over 1 million units to their total in a couple of years, wonder what China will look like by next year.
There's no good reason to get excited about China, because their game approval process is so slow that barely anything gets released. It will be very hard to build momentum, so it will take a long time until Switch has enough of a back catalogue in China to go mainstream.