Yes, bad things happen. The essential difference here is that China willfully and purposefully thwarted all attempts to look for the origins and skirt any responsibility. This trend of “no conscience “ is extending to the US where authorities seemed to have given up all hope of finding the SCOTUS leaker of the Dobbs’ decision. People, and countries, continue to do bad things because of a steamrolling movement of being okay with no personal responsibility and no consequences when you screw up.