Kibler's statement is probably a good gauge for the max we can expect out of prominent members of the Hearthstone community. He's well-off, widely respected, politically outspoken and not dependent on any one game or gig as his source of income or relevance.
And the most he does is stepping away from his job as a caster for, so far, one specific event, while being just a tad too charitable to Blizzard for writing supposedly clear rules against political statements, mixing up the different roles and responsibilities of athletes and announcers and continuing to promote Hearthstone via streams and YouTube content.
To be clear, because it'll read like I'm personally bad-mouthing him: Kibler's stance is good judged by its own merits. Althought I quibble with small aspects of the statement, Kibler has done a good thing here which he didn't need to do. It's only in the context of it being the realistic best in terms of push-back Blizzard will receive from Hearthstone personalities, most of whom's financial situation is as closely tied to Blizzard as Blizzard's is to China, that it becomes underwhelming news.