I see in the news that Wuhan is now flooding. So is the flood near the lab. If the wet market was near the lab I would guess that the lab was in the centerish of town. I would guess that if the lab was built correctly it should not be able to be flooded, but we can only hope. Floods destroy paperwork/records and lord knows what would "wash out" of the lab if it did flood.
There are too many ifs, should and hopes in the that statement to make me comfortable. With this situation I am very worried about something else escaping in the flood and now comprised population. On top of that all evidence can be "destroyed in the flood".
Sorry my tinfoil is showing