I still say to blame Johns/Frank for how Doomsday clock felt clunky is just not even close to fair. Everyone and their brother knows Didio forced the story to change when he decided to let Bendis steer the direction of the DCU and threw out whatever Johns had originally planned at the start of Rebirth forcing Johns and Frank to rewrite huge chunks of this story on the fly to fit into the new direction Bendis mapped out.