I don't consider what SR did to be making him more human. I also don't conside that he realized or did anything about the mistakes he made. He barely acknowledged them... because Singer doesn't acknowledge them. He paints the guy as a saviour from above, and the only human desire we see him have is to not be alone... which is resloved in the form of his child.
I see that interpretation as very one dimensional.
I think you just weren't paying attention to the movie. Real attention. In the movie I saw, Superman learned and grew as a character. There was a clear character development for him and the rest of the characters. He was a hero. He was also a man trying to find his place in the universe.
But yeah, to each their own. I see you have your mind made, and I have mine. Enjoy MOS.