But the fact that a government sometimes tries to cover up things does not mean that every claim is true. “They’ve covered stuff up before” just is not sufficient evidence for anything, including, say, Bigfoot.
We are not judging the validity of the claim from the claim alone. We are doing so from the pattern of behaviors around it by the CCP and how those patterns correlate to priors we’ve seen in the past when they’ve tried to hide the truth.