I think this is the main thing driving these comments. Instead of being totally against the idea, these articles are providing a shred of hope (despite not having any new proof as far as I can tell) for the people who are locked in on the lab leak theory. Definitely people getting overexcited about it and trying to claim they were right the whole time and were being "censored".
In the second case, you’re smearing proponents of the theory. That’s a form of censorship.
Doing it for a theory that was not in any way proven wrong (then or now) is professional misconduct.