I don't know much about Snooker, but a fair bit about China. And since I have spend some weeks with the in-laws where hardly anybody could talk to me, I have seen a fair bit of Chinese sports Tv
They are into different sports than other countries:
- as expected is table tennis really big, so is badminton
- basketball, this grew extremly big after Yao went to the US
- football, but clearly not as number one. Women's football has a significant share much unlike Europe.
- snooker. It is really big. No idea what is the trigger, I personally believe it is culturally: Most Chinese do not really enjoy to work out. They do however love to drink and especially smoke... I haven't seen any other country in which smoking is still not only normal but basically expected from a man.... so it is the ideal sport for them