Too the point:
Healer A is low on HP. Healer A uses Benediction. Healer A dies.
Combat log says Healer A healed 'All Hp'.
Combat Log also says Healer took 1k damage.
Healer died from that damage. Healer has more than 1k max HP.
Benediction is on cooldown.
Benediction should not be on cooldown.

Caster B uses LB centered on Player C.
Player C runs out of the LB.
Player C is not hit.

Player C casts LB centered on Caster B.
Caster B runs out of the LB.
Caster B dies too LB.

Benedictions and LBs are not the only things suffering from such conflicts of latency. Hallowed Ground and Benediction are big ones since they're death prevention skills that go off; either on what the server considers to be dead players or what the game later decides should be a dead player and doesn't retcon the skill cooldown.

Thoughts?