You should also consider the history of Camera ownership in mainland China it is still largely an immature market and ownership of SLR's is low because of affordability and lifestyle. Loads of point and shoots, as well as a large wedding photo business market. Walking around in China with a 5D II still draws lots of attention, tripods and filters are very rare, but if you go to a scenic place to take a photo, be prepared to be engaged in a crowd of snappers, firing flash at the sunrise, enjoying the experience.
So while there are some very good photographers in China, I would take this survey as coming from a very unique perspective.