I think to enjoy SR, you have to believe there is an irony in Superman's character. That even though he goes out and saves the world in full view of the public appearing heroic and even godlike at times, that in his personal life he is a mess. You have to believe he is capable of hurting those he loves and that when it comes to facing tough situations, he can handle the physical, like risking his life to save the world/ Metropolis, but when it comes to personal relationships he will take the easy road. He won't face the pain of having to tell Lois that he has to leave. He won't think about the consequences of being in a sexual relationship and his responsibilty in that relationship. You have to believe he will be selfish when it comes to his own emotional pain.
While these things could be portrayed as interesting aspects of A character, I don't think they are part of SUperman's character in any medium in which he has been portrayed previously. THerefore, these aspects don't fit with the character. IT's a new take that contradicts what people already know about the character.