I am not a virologist but not far away from it. It is well possible that the virus escaped from a lab. But never claim maliciousness for something that can be easily explained by stupidity. When working with Chinese in the lab I experienced them as never working very clean (e.g. with radioactive stuff).
"There is some weak evidence regarding lax security and procedures at the Wuhan Institute of Virology." No, there is actually strong evidence. https://www.washingtonpost.com/opinions/2020/04/14/state-dep...
This alone shows the guys don't know what they are talking about.
There is no evidence that the virus was artificially altered (But absence of evidence is not evidence of absence).
This being said, it seems to me that Corona COULD be used as a weapon. China is coping much better then the EU or the US with the virus. We know this now. How about 3 more viruses in the next three years? Will the west survive this? While I STRONGLY believe that China is not really to blame for the outbreak, I am sure the development has raised eyebrows in China.