The big tech companies in question (Twitter, Facebook, YouTube, etc) are using the WHO's guidance as the barometer for what does and does not constitute "mislea

The big tech companies in question (Twitter, Facebook, YouTube, etc) are using the WHO's guidance as the barometer for what does and does not constitute "misleading information" when it comes to deciding what to block. So, OP's point is not misguided. It's not like Twitter's own medical staff are the ones deciding whether hydroxychloroquine is or is not effective.