there is no local bat population near Wuhan, China -- nor is Wuhan known to be some sort of wet market epicenter. It has wet markets like any Chinese city would.
The reason the wet market theory came to prominence was because commerce seemed like a reasonable explanation for how a novel coronavirus showed up so far away from its known animal reservoir (bats).
The reason the WIV is in Wuhan is the same as the reason why the CDC is in Atlanta or whatever -- Wuhan is a major city and it has things in it.