There's a very strong aversion towards anyone with different views on this subject. I'm not convinced its solely due to a lack of data. Low sample size studies have been around for a while, but the aversion on this is so much stronger, and has an effect. In China, it's explicit. If you say there's human-to-human transmission, the police will arrest you. If you research the origins of the virus, it's illegal to publish that. In the rest of the world you're allowed to express such views, but there's a very strong chilling effect (and on social media its banned if it contradicts the W.H.O.). An example of the chilling effect would be when scientists arguing for masks had to do their work in secret: https://twitter.com/jeremyphoward/status/1244038605078757376