I want to know if anyone else has this problem....

We are fighting frostr or any other boss.. both of us have died lots of times but managed to get him down to almost dead.
I die within an inch of him being beaten and then the other person finishes the quest, gains the achievement and the person that was not next to the boss does not.
I participated in the entire fight but died 2 seconds before the end. Why should i miss out on the achievement just because i was not stood next to him. The fact that you are all in the same party and all in the same instance should mean you get everything together even if someone gets the last hit. Just because you die ... because your push yourself right until the very last bit of your health to kill the bugger, doesn't mean you miss out on the rewards.

The mechanics of this needs improving and i would love to know if anyone feels the same.