Quest items - group loot

Hi i know it's not blizz like, but i have had a lot of people sniping quest items in groups and leaving when they are done. (I have also done it and I know it's a dick move), well the problem is that 1 guy can get a quest completed without the other guy getting 1 item for the quest, if the quest items was only looted on a rotation between the people who have the quest, you would be able to have a better team experience.
this might have been posted before, but i could not find any developers responses to it.
this might have been posted before, but i could not find any developers responses to it.