If someone Thors my DE I wait till they have 3x what they took and a load of gold and elixir and then take it all back. If you farmed some guy weaker than you and they revenge Thor your DE just suck it up, you've probably farmed millions upon millions of resources off them.
It's a nice way to spread the DE from the rich to the poor and means everyone gets a hero for minimal cost. Nothing needs changing tbh.

