Board Thread:DC Universe Discussion/@comment-1635895-20121009211608/@comment-1038387-20121014222215

You'd best ask Dan DiDio. He really has it in for her; he gets the heeby jeebies as soon as you mention Steph or Cass. Actually, one of the links in that article has a decent writeup of the controversy.

Honestly, I'd be surprised if this was the reason. You'd think DC gets these things clear earlier.