Ironically the Chinese are much more science pilled than we are, in part because the party and government have a higher proportion of scientists and engineers. Culturally this biases them to open sharing of information and likely against strong copyright (which is already demonstrated historically) outside areas where it is deemed harmful to social harmony. There's some geopolitical defensiveness and desire to dish out a little payback for the century of humiliation for sure but I think even if that weren't the case they'd still be lax about copyright.