Yes, there is much more evidence. My medium blog also cites the Chinese CDC in early 2020 and the China-WHO joint report, both of which corroborate the fact that case definitions used in Dec 2019 to mid-Jan 2020 required a link to the market or at least that the patient had to be admitted to a hospital near the market or live in the neighborhood of the market.
See: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8393104/ https://www.who.int/docs/default-source/coronaviruse/who-con... (pages 125 and 161)