According to Sefton Hill's twitter, after they took it down from Steam, they allocated developers from Rocksteady to try and fix it.
They still couldn't get it to work properly. So they gave up.
You don't expect me to believe that they didn't know about the issues. Of course they did. They chose to put it out anyway. Rocksteady is just as much to blame as WB or Iron Galaxy.
the blame should go 100% on WB and no one else. Not Iron Galaxy or Rocksteady