You're talking about a country where freedom of speech is openly not existing. Imagine your chances of finding out that they accidentally spread a virus they were researching about.
The same country with 1 billion people and 6-8 covid cases per day. Sure.
To be honest I don't even understand why this is a topic anymore. Conspiracy or not, it's plausible that they screwed up. Why are people nitpicking, I don't get it.
Plenty of people were able to talk about lab leak conspiracies. That is why we are still debating it today.