I've done over 200 hours of research on this topic and have read basically all the sources the article cites. That said, I don't agree with all of the claims. I do not think the SARS-CoV-2 virus is very likely to have been created using the RATG13 virus, because of the genetic differences spread out throughout the genomes. However, there are many other paths that could have led to a lab escape, and I'm somewhat agnostic between several of them.
I don't have a lot of time to investigate this further, but if someone was going to spend serious time on it, then I'd be happy have several calls with them, discuss sources & share my notes with them. At this point I think a lab leak is more likely than not, with the strongest piece of evidence being the confluence of the location of the first known outbreak + location of the world's top lab studying SARS-like coronaviruses + absence of related viruses detected nearby + absence of evidence of any other plausible origin.
I highly recommend following Alina Chan on Twitter, who done a lot of interesting work on this question & has appeared to me to be pretty discerning. https://twitter.com/Ayjchan
If I were going to spend a bunch more time on this, I'd try to conduct an estimate using a Bayesian model, probably starting here: https://www.rootclaim.com/analysis/what-is-the-source-of-covid-19-sars-cov-2 and creating my own estimates for each claim + writing out arguments for why.
A random observation I want to note here is the relative lack of good disagreement I've seen around questions of SARS-CoV-2 origin. I've mostly seen people arguing past each other or trying to immediately dismiss each other. This seems true of experts in the space in addition to non-experts. I'd love to see better structured disagreement, i.e. back and forth in journals or other public forums. This might be a good topic for adversarial collaboration.