No the problem is that the DC films aren't trying to actually have characters. They want logos that engage in action scenes. I've seen MoS and BvS and I still don't know anything about Superman other than the most basic origin story. I don't know "who" he really is when he takes off the cape. The Nolan Batman is different than the comic Batman, but he works well in that story. The DC films treat their heroes like the Transformers, they're really just props for fight scenes and nothing more. They need to feel like actual people and they are failing at that. There's been a thousand variations on Superman, but most of them are at least given some character development.I disagree.
If anything the characters being "known" is more of a problem, because some people are evidently unwilling to accept anything other than their version of the characters.