Oh, no, obviously a ton of mythological gods were assholes porking their close relatives and passers by and screwing over mortals to terrible afterlives for minor inconveniences. Ditto defiance of the gods and karmic punishment there for is as old as time. But the Arbiter as an infallible decider of where you should go definitely owes a lot more to the Abrahamic religions, while the individual afterlives are all over the place. Combining the two as Blizzard have is why we can even discuss the realms and why I'm leaning to reform being the angle they're going with. The rules for not getting to the Maw meanwhile are arbitrary in the sense that A) Someone can just throw you in there if they feel like it, like how the Kyrian do it, B) If you go to Revendreth, itself arbitrary since people like KT, the Margraves and Vashj don't go there despite having a list of crimes longer than the bible or just being evil pieces of shit, ultimate decision is left to whether Denathrius wanted you to go to the Maw or not. That it has been working for as long as it has is mostly in the sense that nobody was aware of it up to now and those that were (The Light, Legion and Void) didn't give a flying shit about mortals being dicked out of a nice afterlife.
@Arrashi
The electrostimulation will be left to a short story.