I consider that to also be a wrongly held position, because you'd need proof either way. So atheists are just making a bet. I think agnostic is the most valid position as far as I am concerned, lacking proof of one or the other. I do not know. We can get into technicalities as well. What exactly do we mean by God? What if some religious God does exist but it's wrongly interpreted by believers? What if there's some highly technologically advanced entity that meets the criteria as far as the more primitive religious perspective is concerned? Do we have proof such thing exists? Do we have proof such entity cannot exist in our universe? I find both perspectives shortsighted.
Having certainty something that can be perceived as God by believers cannot exist in our universe is in the end a belief, with no proof.