There has been an extensive analysis by a virologist on Reddit[¹], who claimed that, very simply, SARS-COV2 is a so-called "mosaic" virus, while man-made viruses are inevitably "chimera" ones. The article does not seem to make this distinction.
The virologist also chimed on HN (besides, calling BS on people who were, out of ignorance, spreading false beliefs), but it seems he's not participating to this post.
It'd be best to have the opinion of a specialized scientist, in order to to have scientific clarity before starting the political arguments.
[¹]=https://www.reddit.com/r/science/comments/gk6y95/covid19_did...
The link you provided does discuss the probability of the virus accidentally leaking from a laboratory, however the reasons provided does not really provide much facts, seemingly more speculation (except for facts regarding who we think is patient zero):
"The WIV, and Dr. Zhengli-Li Shi’s lab group, are extremely well-respected in the virology community. As well respected as many US scientists.
● All the WIV’s sampling of bats and the genomes that they find in bats are publicly available information. Why isn’t SARS-CoV-2 on any of those lists? We would know.
● This doesn’t look anything like any laboratory accident that we’ve seen before.
● The evidence we have points to Patient Zero being nowhere near the City of Wuhan." (https://drive.google.com/file/d/1kAHSEx9-eIyVIahczH8itHaUm9j...)