So the volume of Chinese AI papers says little to nothing about their advancements in the field.
It's like how historical American medical data collected by universities has been misapplied to pharmaceutical and medical practice because of demographic bias. Research participants largely matched the demographics of the university: healthy white males.
Or more broadly, whenever you see a "last name" requirement on a form, you know it's software made by people who think it's normal for people to have "last names", and that everyone should know what that means.
Researchers are vastly more likely to read, and therefore cite, papers in languages that they understand fluently.