Merric, this is the first time I've heard a reason for why morale was removed. Do you recall which developer told you this?
I miss the old morale rules, and I don't really see why adding morale to the game would cause balance issues. Creatures that were inclined to run from fights they couldn't win could just have a slightly lower CR than one that fought to the death, right? Why would this affect balance/randomness more than any other variable?
Try Randomness issues, instead.
Cheers!
You're not a wargamer, are you.Then they should have just removed the dice.
Morale wasn't removed because it was too hard: it was removed because it caused massive balance issues.
Cheers!
Since it applied to all players equally, I don't really understand how that could possibly true. It's not as if fearless creatures types were all Rares or something.