Right, and you even see the Eternal Ones (the Pantheon of Death) have a similar idea going on where they are themed around certain aspects.
Kyrestia = Order/Light (the main Kyrian energy source seems to be Arcane and it fits their general theme, and they talk about a Void attack/have a heavenly aesthetic)
Winter Queen= Life (duh)
Primus = Death (the certified Death x2 guy, hence the general necromancy theme. he also may be actually dead)
Denathrius = Fel/Void (Dreadlord/Nathrezim hints and ties as well as Shadow powerset, and Light constantly invading)
Which leaves the question of what exactly Zovaal represents or represented, though he may be the TRUE "Death" guy of the pantheon.