Once the news bubbled up to smart people at the top who understood math, their reaction reversed.
There is no way that if people at the top had known what was really going on, they would have let the Moon festival happen.
There's many ways to debunk Lijian Zhao's conspiracy theory including the fact that the people who participated in the Wuhan military games and admitted to the hospital for an "unknown respiratory illness" was confirmed to be malaria by the hospital itself.
He knows it, and anyone who did brief research knows (there are lots of Chinese who believe it, though...they are the Chinese equivalent to MAGA supporters).
However the official conclusion of China that I have seen matches the international community - this started in a wet market in China.
1. https://www.ft.com/content/d420ce18-641f-11ea-b3f3-fe4680ea6... 2. https://www.scmp.com/news/hong-kong/health-environment/artic... 3. https://www.nytimes.com/2020/03/13/world/asia/coronavirus-ch...
Uh, from the literal headline of the article itself, the apology is probably because he blamed it on, quote, "inferior Chinese culture".
And obviously you already knew that. So you're just trying to push a narrative here.