I think that pre's collision would have consumed all the oxygen really fast through combustion.
so no this would not allow for the oceans forming because there
would not be enough oxygen to bind with the hydrogen.

this could be a way that the oceans formed as long as there was
oxygen producing life on the earth such as plants.

I think that what is important is that this shows that the flood that is described in Genesis could have happened from a scientific / physical standpoint.

3/4 inch of dust build up on the moon in 4.527 billion years,LOL and QM is fantasy science.