Personally, I'd say the proximity of the lab to wet markets is irrelevant. What matters is that the lab is quite close to where the alleged origins occurred. In a country as large as China, that's relatively close, and while it may be coincidental, it's certainly valid to raise questions about that proximity. It's not like these labs are all over China.
I don't know either way, but I know enough not to trust China on anything Covid related. Their numbers are a universal joke. About as believable as North Korea not having a single case.
So I'm not trusting anything China has to say about their origins. They prevented and still are stalling when it comes to allowing international inspectors to investigate this. Until that happens, conspiracy theories are fair game.