Ideas and suggestions.

Nonsense, these are excellent artifacts that add their own randomness and variety to battles (especially for frontline battles).
Why don't we ban all morale/luck then?
There will still be plenty of topics that will cause heated debates.

You're talking nonsense. If variety means introducing more randomness, then that kind of variety doesn't benefit the game. Specifically, with -2 or -3 morale for both players, the final battle becomes almost entirely random. And if the developers are moving towards reducing randomness (e.g., by changing resistance), then the morale debuff needs to be addressed as well. I'm not saying that morale should be removed. My point is simply that the situation where most final battles take place with both players having negative morale is a bad thing.