The problem is not the low drop rates or the fact that it's mean to artificially draw out content or that the best weapons should be hard to get. The problem is that the weapons don't drop into your loot list so that you cannot pass them to players who may actually want/need them.

I do runs with my LS and we pass the totems and nuts to those who need or are close. However multiples of the same weapon have dropped to people who have no intention of playing that class as their main or at all. On the first drop it gives them a reason to go level that class now, given. However when the same weapon gets dropped multiple times to the same person, it is wasted. It cannot be taken by that player and is lost forever. That's awful, especially when there's often someone in the party who wants/needs that weapon.