If it does turn out to be a lab leak, the simpleton answer would be to just blame China and that would be extremely dangerous. They are not alone in the world of virus studies and lab leaks.

As for what difference would it make, I would hope in a rational world, it would change the culture that allows these lab leaks to happen throughout the world. We need to take this more seriously and better question the purpose of some of these studies and allow rigorous international monitoring.

If we can accept a combined human guilt and take steps to never allow it to happen again, we might be able to eliminate lab leaks.

Unfortunately, the world will probably just blame China and there will be fallout.