For what it's worth, I saw posts on Reddit saying the opposite: that Bat coronaviruses are BSL-2, not BSL-4, and so it wouldn't make sense to restrict yourself as a researcher by studying them in the most stringent lab.
(I'm not saying this to argue that the lab escape theory is wrong, just to argue that Reddit posts are difficult to appraise.)
(I'm not saying this to argue that the lab escape theory is wrong, just to argue that Reddit posts are difficult to appraise.)