Actually yes. If someone is trading hundreds of live animals for meat on a weekly basis, and the animals aren't obviously seriously ill, why would you expect them to use any standard more rigorous than 'looks fine to me'?

Consider how things like hoof & mouth disease have ripped through agricultural herds in western countries, where there are much higher regulatory standards for food production. Diseases can spread fast before the symptoms become obvious.

The Wuhan lab used to catch wild bats and take virus samples from them. It’s not too far fetched someone sold the same bats to the market or was infected and infected other people / living animals there.

I still don't see why you think researches would resort to selling bats to a wet market to make a little extra money.

They'd be fired for sure if caught.

They also would make almost no extra money... The going rate for bats isn't much...

There are more persons in a lab than only high qualified researchers. Cleaners for example. And one bat might not be much, but if your job is to dispose 20 or 50 of them and you can just go a few hundred meters and sell them to a vendor for a few bucks?

I don't say that is what actually happened there, I just think that this would be one possibility.