This has nothing to do with the corona virus strains we are currently dealing with, and more importantly, there has never been any credible research proving that Covid was made in a lab. The only paper that got any traction suggested it was non-manipulation based gain of function research, but that was disproved only a few weeks after the paper's release as well. I know we all want to know where it came from, but the odds against us ever having actual evidence of it being from a lab are virtually zero. And no, rejected research proposals do not constitute proof of anything.
The lab in Wuhan was studying Coronaviruses because of the threat they potentially posed to humans, and because the nearby bat populations were know to carry them.
Saying that the existence of a lab studying novel viruses in their natural habitat is evidence that I can from a lab, is like saying the existence of fire stations in a cities is evidence that fire fighters start fires.