It seems that the "covid trutherism" or "spreading covid misinformation" claim is unjustified. Here's Blow's original tweet:
> If a state entity does an oopsie in a lab, then forces its citizens to undergo an experimental treatment because of the oopsie, while suppressing news of side effects, and also denying that the oopsie is anyone's fault ... that's just abusive?
Unfortunately Blow was unwilling to come out and state his position here, relying instead on innuendo, so we have to kind of guess what he was trying to say. I interpret him as making four claims here:
1. The COVID-19 pandemic originated in a lab leak.
2. Some Chinese people were forced to accept experimental vaccinations.
3. The government of the PRC suppressed news of the side effects of the vaccines.
4. The government of the PRC worked to prevent investigations into the cause of the pandemic.
Claim #4 is plainly true; the WHO and several other countries have protested this at great length.
Claim #2 probably depends on your threshold for "experimental" and "forces". https://en.wikipedia.org/w/index.php?title=Sinopharm_BIBP_CO... explains that emergency vaccination was available in China in July 02020, and there are plausible claims that Chinese state employees and students traveling abroad were required to take it. This was before results were in from clinical trials, which I think qualifies for most people's definition of "experimental"; the WHO wouldn't add it to its list of authorized emergency vaccines until May of the next year.
Claim #3 seems almost guaranteed to be true, but I don't have direct evidence. The government of the PRC routinely suppresses news, and there are numerous well-documented instances of this happening in connection with COVID, and there are always some subjects in clinical trials of vaccines who have major health problems such as death which may or may not be caused by the vaccine. BBIBP-CorV seems to have been, in the end, pretty safe, but it seems inconceivable that there weren't at least some news of people dying or having terrible health problems after receiving it which were deleted from Weibo or other media ("suppressed"), and that these deletions were carried out because of state policy of the PRC.
Claim #1 seems like the most debatable one, but even that isn't an open-and-shut case. At the time, the lab-leak case was fairly weak, and it certainly hasn't been proven, but it hasn't been disproven either; see https://www.astralcodexten.com/p/practically-a-book-review-r... for an extensive summary of the debate. Because of the truth of Claim #4 it seems unlikely that it will ever be disproven.
More generally, I find deplorable the polarization on partisan political grounds of fields like puzzle games, genetics, and quantum physics. Artistic development, understanding the world, and extending technology are necessarily collaborative endeavors, and rejecting Blow's games because he criticizes the Chinese government seems akin to refusing to use the Schrödinger equation because Schrödinger sexually victimized teenage girls.