That is to say, is there an actual person who is perfectly fine with all the terrible things the CCP plainly does, but finding out that they've been incompetently handling research will suddenly make them change their views?
Sure, maybe the CCP screwed up containment, and that mistake cost millions of lives. Every single major government around the planet has facilities like the one we're discussing. Every single one has made mistakes like the CCP possibly did. The CCP were just unlucky in that their mistake wasn't confined to one person or the welcome lobby.
Knowing it was engineered in a lab would put a bigger spotlight on facilities like these. Unfortunately, its most likely to only result in sanctions against China, but if the people in charge could summon an ounce of sense, it could also mean more of these facilities being shut down, their research suspended, and the live cultures of humanity-destroying plagues in their vaults destroyed.