There should be a discussion page, like on Wikipedia, for "fact checkers" to publicly interact with those who post "misleading information." It's highly upsetting that there was no process for this entity to challenge the ruling of the "fact checkers." Especially since it is an established medical journal.
Why can't we have open discussions about "the facts?" Are we living in a democratic country or an authoritarian country? For those that say "Facebook is a private company, it can do whatever it wants on its platform," I think it's important to distinguish between the legal right for a company to do something and the moral character of their actions. In other words, Facebook may well be within their rights to do what they are doing, but that doesn't mean it is moral. Given that we are a "democratic" country, our moral judgements should weigh heavily against these types of authoritarian actions, even if they are legal.