Yeah, this is very disingenuous. That was the single concession in an article full of proof that that meet market played an important role in spreading the virus, and that it is probable that is where transmission occurred. Short of detecting and recording the original infection, which is very unlikely to have happened due to the nature of the virus.
And yes, the house oversight committee is controlled by Republicans, because they make committee appointments after they gained control of the house of representatives in the 2022 midterms, and this was a political priority for them. If you read their release, it is clear that the questions were lead by Republicans.
Now we cannot be 100% sure what the origins are, so we can make a conspiracy theory that that chain engineered the virus and planted it, severly infecting their own population, in order to unleash a worldwide pandemic because… reasons…
Or we can acknowledge that a scenario that was pretty widely anticipated occurred, and it became a political priority for the Republicans to deny after trump started to, which they then pursued with their new policial power in the house. But a politician would never lie to you right?