The communist party could never admit to such a global catastrophic event originating in China, even though it's obvious that's where it started.
Personally I subscribe to the lab leak theory rather than the market .... I've worked in public health for years, and while novel viral infections can start from contact with wildlife, there's usually some local immunity within the community as the wildlife contact is not a single event. The origin is also going to be in the rural areas where the initial contact takes place.
Starting in a major city, and zero immunity, even amongst market workers .... most likely created in a city center lab.
And just imagine the effort by the Chinese government to disguise the true origin .... we'll never know for certain.