I'm not arguing that the "something from nothing" hypothesis is incredible (as in, "unbelievable"), but simply pointing out that it's arrogant of humans to think they really have already, at this primitive stage of science, worked out the answer to how the universe got here. We don't know nearly enough to say that such a scientific idea is probable, only that it's possible, let alone do we know enough to say that the idea of a creator is less possible.
The point I was making is specifically not stating an answer to how we got here. It is also not claiming any particular knowledge since I am specifically stating that the natural universe (including all its unknowns) is the same for both positions.
I would say that we do know enough to say the idea of a creator is less possible. For example every single process that we have studied has a natural cause, there is not one process that requires supernatural intervention. Why on earth should that 100% rate be broken? There is no reason to suppose that it would be.