There doesn't appear to be any regional association with the WIV's research on Bats. WIV studied bats fro all over China and notably isolated the likely center of the 2003 SARS outbreak to a set of bats in Yunnan. The institute was founded in 1956, long before Coronavirus research started in earnest.
https://en.wikipedia.org/wiki/Wuhan_Institute_of_Virology#SA...