I'd love to be refuted on the above by someone with actual viral research experience because the alternative conclusion is that the Chinese govt has known the true origin of SARS-Cov-2 since early 2020 and simply won't tell anyone.
If indeed it ever existed, such would almost certainly have been destroyed by now.
Ultimately the source/origin story only matters to narrative or those who would push political narratives of good/evil guilty/innocent. We have to live in the world that exists today regardless of whether it was chance or carelessness that caused it.