That's an interesting argument. I guess one critical piece of data would be - is the probability of Covid-19 originating from wet markets the same across all of China?

If every wet market had the same probability, then yeah, it's odd that the alleged wet market is one of thousands, but just happened to be next to the bio lab in Wuhan.

But if the probability was unevenly distributed and such a virus originating was highly likely in only a few dozen wet markets, Wuhan included, then the probability of it being a coincidence is much higher.