Ad I: I haven't seen anybody state that Paladin has no draw since the FitB release. Before, that statement was quite true with Hand of A'dal being the only reliable universal draw (besides Lay on Hands, but who would play that card?).
Ad II: Those Divine Shield interactions can be explained quite simply, as I already did in a thread about Piercing Shot: Both the Divine Shield and the "excess damage" reference the "recieve damage" trigger, not the "deal damage" trigger. Without spell damage or other modifications, Piercing Shot will cause 6 damage to be dealt. Then the Divine Shield states that the minion recieves no damage and Piercing Shot (as well as Explosive Runes) states that all the remaining damage is recieved by the enemy hero, meaning all of the 6 in this scenario. But if they were to put all of this explicitely on the cards, we would be confronted with a wall of text on a lot of cards.
Now, of course the question remains whether Piercing Shot and Explosive Runes should work like that, flavourwise. And in that matter I agree with you, they shouldn't. But the problem is not the Divine Shield, it's those cards. If Divine Shield would reference the "deal damage" trigger, there would be other problems, I guess.
Ad I: I haven't seen anybody state that Paladin has no draw since the FitB release. Before, that statement was quite true with Hand of A'dal being the only reliable universal draw (besides Lay on Hands, but who would play that card?).
Ad II: Those Divine Shield interactions can be explained quite simply, as I already did in a thread about Piercing Shot: Both the Divine Shield and the "excess damage" reference the "recieve damage" trigger, not the "deal damage" trigger. Without spell damage or other modifications, Piercing Shot will cause 6 damage to be dealt. Then the Divine Shield states that the minion recieves no damage and Piercing Shot (as well as Explosive Runes) states that all the remaining damage is recieved by the enemy hero, meaning all of the 6 in this scenario. But if they were to put all of this explicitely on the cards, we would be confronted with a wall of text on a lot of cards.
Now, of course the question remains whether Piercing Shot and Explosive Runes should work like that, flavourwise. And in that matter I agree with you, they shouldn't. But the problem is not the Divine Shield, it's those cards. If Divine Shield would reference the "deal damage" trigger, there would be other problems, I guess.
Ceterum censeo classum magi esse delendam.