Earlier quoted context omitted.
The geoscientist in question is actually arguing that some of the flaws in the paper are due to the authors' lack of expertise in geospatial analysis.[1] [1] https://twitter.com/search?q=(from%3Adanwalker9999)%20expert...
that may be- I am not qualified to say after reading the twitter thread, but my money is still on the peer reviewed paper written by the virologist, based on a large collection of priors. Note taht the "geoscientist" is really a hydrologist who works on oil and gas, so their ability to comment on the centering model is still suspect. From what I can tell, "dawalker" is just a retired hydrologist with no special skill…
Map-based arguments for the exact site of introduction seem generally like noise to me. Worobey has made aggressive claims in preprints and media interviews, but even his Science paper falls back to just "epicenter", a weaker term without standard epidemiological meaning. SARS-CoV-2 must have been introduced into the Americas at air and seaports; but even with the advance warning to public health officials, that's not where the first clusters were found.