Nope, the water didn't do anything. Didn't you see the exact same structures on land nearby? The structures were above water, the humans rearranged and carved some faces on them, then, the oceans rose and covered them. (it's that simple)
The scientists I saw were speaking of the currents. I didn't see any 'exact" same structures. I saw a lot of things that had some form but not to the point of forming stages. I believe that humans used the grain of the geology to form the stage. It's too uniform.
At any rate it's not really important whether the stage was formed naturally or not. The scientists speaking against this structure were doing so to prove that the place didn't have any history related to man. The faces prove them wrong. I don't include Schott in this, he was careful in his words. But I know he wouldn't repeat what he said before the faces were photographed.