Beechen, for whatever reason, is apparently pretty good at writing DCU cartoons. He did that awesome "Invasion of the Secret Santas" episode of Batman: the Brave and the Bold. Which sometimes makes me think we should go a little easier on him for writing Cass the way he did, because it's likely editorial was to blame. But on the other hand, I think there would've been a lot of room for him to stay truer to the character's established background and personality than he did.