If the entire world was ResetERA, then it would absolutely be ridiculous.
But, for better or worse, it isn't. There are millions of people in America who would proudly display any of the phrases I wrote above on a bumper sticker or their t-shirt without batting an eye. Similarly, there are millions of people for whom the situation in Hong Kong is a lot more ambiguous than how you framed it.
Blizzard is in the business of making creative art that brings people together from around the world. To achieve that goal, they try to avoid taking overt* political stances. It's perfectly valid to fault them for that if you want, but it's also worth noting that there are much larger, more influential companies (any of the tech giants, for instance) that similarly do everything they can to avoid explicit political stances. If you create controversy and division, then it's bad for business, and it's also bad for your goal of bringing people from disparate cultures together.
* While they avoid taking overt political stances, their games have plenty of implicit ones. Overwatch is a game about a diverse, multi-national group of characters that all share liberal ideals. Battle for Azeroth recently had a story about a leader who seized control of a country using nationalist rhetoric with an emphasis on "loyalty" and fearmongering about "traitors". They may not want to come out and take an overt stance on contemporary political issues that are still in the process of evolving, but that doesn't mean that they're apolitical.
