Granted, drawing excess damage cards is a bit of a pointless rule.
But equally pointless is making a stand over not drawing them: did you seriously start an argument over the tiny amount of effort it'd take to pick up another damage card or two?
If you lose your cool over putting an extra damage card on a dead ship then you lack the temperament for not only X-Wing but just about everything in life.
Drawing as few cards as possible limits his exposure to the bottom of the deck.
Given they're shuffled and the facedown damage cards are hidden information I fail to see what difference that makes.
If anything, dealing more damage cards is to your benefit because it increases the very remote chance that you run out and become crit-proof.
Edited by Blue Five