Some of the debunking relied on the analysis showing that it wasn't the result of Gain of Function research. Whereas an accident could certainly be a release of a natural sample they were originally working on.
>>anothe+(OP)
The original article that our thread here is about cites a Wuhan researchers relief that the wild virus is not genetically close to anythibg they had in their lab. That's a complete contrast to what you are speculating.