It was also political because of the punitive measures sought by those pointing fingers to China— ranging from 10 trillion in reparations to war. Rather than saying hey, maybe this gain of function business was a mistake & we should just do it in the supercomputers like with nukes or something.
Personally, I don't really understand the focus on pinning down the exact reason this happened. Stop GoF research and shut down wet markets. Stop encroaching on wilderness as best we can while we're at it. Do all the things.