Open, thank you for your comments on the film. I fully agree with you on that Noah turned out to be a quiet controversial movie.
I also find it interesting that the most visited news site in my country decided to publish two parallel reviews on 'Noah' with two completely different approach and rating from two movie critics (2 out of 10 and 8 out of 10)
This is what we experience in the outer world in general, the 'splitting of the worlds' so to speak. One is getting the messages/metaphors the other is not.
For me, Aronofsky's message in that crucial moment you mentioned was also that 'the other side of the waters' only Love can prevail...