The fact that anime & JAV can be blamed is an outlier behavior, China had been investing a lot in anime-game directions but so far don't seem like they're on track to be as dominant as Japan is; there hasn't been significant CAV/TwAV/KAV/PhAV/VAV movement yet(partly because "blurred porn is not porn" defense isn't valid in most Asian countries?)

I'd note that some of Chinese(including Taiwanese) fringe content do seem to resemble that of Japanese ones from couples of decades ago, so there is possibility that this apparent anomaly is just phase errors. Or not, we'll see...