Blizzard just wants money. What worries me is that governmental or supranational interests begin to use video games as a weapon of social engineering. As with movies, television series, some book publishers and media. For example, war thunder is partially funded by the Russian defense ministry. Video games can be used to influence younger generations.
Authoritarians fear what they can't control and Gen-Z gamers are now a political target whatever they like it or not.
China is a very rich country and has big undisclosed gold reserves from before WW2.
They are a former superpower and has good reasons to not trust the west nor Japan who tried steal their gold.
For some confirmation of Chinese gold look up Japanese WW2 military operation "Golden Lily":
https://en.wikipedia.org/wiki/Yamashita%27s_gold
Two-Thirds of Gen Z Males Say Gaming is a Core Component of Who They Are:
https://www.aaaa.org/gen-z-males-say-gaming-core-component-who-they-are/
Gaming/streaming to Gen-Z is what rock star music was to Gen-X/Babyboomer.
Rap music are glorifying the use of alcohol and violence more than other genres of music. The fact the legacy media/art industry tries to censor gaming and not rap music give a big clue of ulterior motives.
Gen-Z gamers listen more to gamers such as pewdiepie than legacy media.
sources:
https://www.socialmediatoday.com/news/9-things-we-learned-from-the-2018-user-generated-content-ugc-report/513245/
https://www.tintup.com/blog/38-mind-blowing-stats-effectiveness-user-generated-content/
American free speech is alive and well just not within the legacy media.
For a deeper explanation watch this clip from longtime gamer Bill Whittle;
https://billwhittle.com/blizzard-bans-blitzchung-can-china-stand-against-a-world-of-virtual-warriors/