Earlier quoted context omitted.
It doesn't seem at all line they're claiming that lab escapes never happen. Just that this particular lab is known for being extremely safe, and that it's therefore unlikely it would have had a leak. For a leak of such a virus to happen from a BSL4 facility that routinely handles much more contagious viruses, you would need incompetence or funding issues, yes.
> Just that this particular lab is known for being extremely safe, and that it's therefore unlikely it would have had a leak. This is nothing but disinformation. > Two years before the novel coronavirus pandemic upended the world, U.S. Embassy officials visited a Chinese research facility in the city of Wuhan several times and sent two official warnings back to Washington about inadequate safety at the lab, which was…
The cables the is factually claiming is that US officials learnt that the research going on at the lab indicated that there is a high risk of a coronavirus causing a pandemic, that there is a risk of zoonosis, and that there are risks associated with this research. There are no specific claims of bad practices or mismanagement, and it is entirely likely that the author is using those words to refer to the decision to do this kind of research as well as GoF research when he talks about unsafe practices and mismanagement, as they are the only material issues with safety and management he mentioned.
Beyond that, I don't see any evidence the lab was operating unsafely. If the virus really was in those populations, you'd need two unlikely things to happen, since we all agree the virus wasn't engineered.
First, the Chinese government needs to have made the conscious decision not to release proof that the virus was natural. Indeed, if it was being studied alive, the WIV would absolutely have identified it and a precursor. They could have offered one or both of these, or returned to where they found it, and pinpoint an origin, absolving themselves of all these arguments.
Then, the virus, which would belogically present in bat populations in those populated areas, would have had to escape a BSL4 lab, but not have escaped into society beforethen? What's the likelihood that it could have, while weakly infectious and poorly adapted to humans, managed to go through the protections of a BSL4 lab, but not managed to make it out of those animals?