Plenty of animals have been found to positive for Covid - and the animal cages in the market had numerous environmental positive samples. I think you mean that

Plenty of animals have been found to positive for Covid - and the animal cages in the market had numerous environmental positive samples. I think you mean that no source animals have been found -- but if the timeline in this paper is right, the zoonotic jump happened in late November and they didn't shut down the market and start testing until almost a month later -- so a strong case of "absence of evidence isn't evidence of absence"