We need to be figuring out how to deal with that. Wondering where it came from is mostly neither here nor there.
We aren't going to magically stop doing lab experiments if we can know for certain that it started in a lab. If we can determine for certain that this jumped species, welp, it isn't the first time and it won't be the last.
It seems intuitive that knowing the origin of the virus (sample escaping a lab or pure nature) could help prevent similar cases in the future or deal with them more efficiently. Is my intuition wrong here?
This strikes me as just the latest stage of that process (or the latest chapter in that story).