Let's be honest here...... with how much the team relies on him to carry them on offense, I can't blame him for not having a ton of energy for defense on the other end.
I would buy that if he played at a fast pace, but he's already conserving energy most of the time on offense. Plus, Dame's conditioning has never been in question.
The nature of how much Dame has the ball in his hands and how much he deals with traps, it sure looks exhausting to me. Plus, I can't imagine chucking 35+ footers is restful.
Beating the trap takes a lot more explosive effort than backing away from it or launching a deep shot.