Solo Killed the King of the Mists Boss and Died Before Looting

Solo killed king of the mists boss and died at the same time. After dying before looting boss was up and I tried to fight again but the boss immediately died and dropped just the atlas book. Lost a chiming staff unique and a couple rares. Happy to have gotten the atlas skills but not sure if this was intended.

Ideas to fix this given I heard some issues with abuse in parties.
1. Make the boss spawn a "chest" or when he dies he turns into a "interactive effigy" that burns or turns into mist once interacted that only the instance host can interact with to cause the map to complete and loot to spawn. This makes it so the instance holder has to be alive to get loot"
This would allow reattempts at killing the boss to get loot if you have attempts remaining and stops re-spawning abuse.
2. Once the boss dies make a quest spot near the corpse that summons Atalui. Then once talking to her she investigates and "completes the map and drops loot and you can no longer re-spawn if you are dead. This gives you the choice if you are in a party that if someone lived they can get the loot or instance host can respawn to try for the atlas book if portal attempts remain.

Bug Report ID: #1593487688