No, it is not. Infections have been found that pre-date the Wuhan outbreak. It is entirely possible that the market was a transmission vector akin meat processors in the US, but not the original source of the virus.I thought it was a settled question. that the virus was spread form live animals being kept in the Wuhan animal market to human staff their, then out to others.
livescience.com/first-case-coronavirus-found.html