This prompted a thought: did Blizzard take the action they did because China threatened to withdraw its players from the Overwatch League? That would kill entire teams in that esport, and be much more visible than merely losing ordinary players.
There's only one Chinese-majority team (which, oddly enough, also has the only Taiwanese player). In total it's probably less than a dozen players.
It’s to sell their east-Asian inspired loot box games to Chinese users. Blizzard has been learning from Chinese and Korean gaming companies and how they skirt gambling laws and want into that market