I mean, citations please. If it really was a lab leak, who is to say it wasn't from a small specialized research team, maybe some academics who were aware of the science but not the implementation, and a couple people in management? The project does not need to have been a huge, nefarious, x-files program. That sounds like the conspiracy theory to me.
I think you might be vastly overestimating how many people would even have been knowledgeable about it in the first place.
Maybe people are terrible at keeping secrets, but also everyone who spills the secret is immediately branded a conspiracy theorist and deplatformed, the end result is the same...
