It's deceptively mis-leading
In Scripture, communing with the dead, as Saul sought to do at Endor, provokes YHWH's Wrath from heaven, leading to one's downfall
But in D&D, Clerics can engage in all manner of necromancies, without incurring (in the game) any Wrath from any Supreme Being
D&D imagines all sorts of magic & witchcraft and what not...but makes no allowances for YHWH Elohim
It deceives people into denying & underestimating God in heaven
I'll be honest here, I'd consider it pretty blasphemous if one were to try and reduce the real, living God into a game mechanic.
There's the real world, and then there's fantasy.
In the real world there's no such thing as magic, orcs, elves, and mithril armor. In the real world there's no such thing as zombies, vampires, or elemental planes. These are all make-believe fantasy fluff. In a fictional world an evil wizard can raise an army of zombies, and heroes can take their magical long-swords and fireballs to save the kingdom of Blahblahblah from the machinations of BigBadEvilGuy.
It's a work of fiction. It doesn't exist. It is a game.
In the same way there is no Middle Earth, there are no hobbits. Saruman doesn't live in a tower commanding armies of orcs, and sentient tree-people don't guard forests. There is no magic ring that turns hobbits invisible. There is no Mordor, or Sauron.
There is no magic wardrobe that children can enter into to find a magical world of talking animals.
There is no magical school of wizardry where kids can speak fake Latin and cause pyrotechnics to come out of sticks.
I, personally, like to keep reality and fantasy firmly distinct and separate. It's the reason why I don't confuse the Three Musketeers, the Time Machine, Moby Dick, 1984 with the real world. Because these are works of
fiction, and the real world is
real.
It will forever boggle my mind that people can't seem to differentiate reality from fantasy.
A an evil cleric who works with zombies in a a work of fiction may not face consequences from the REAL God who made heaven and earth because that evil cleric
does not exist. It is a
make-believe character. We also don't see God smiting the land of Mordor in Tolkien's works, even though Mordor is ruled by Sauron, a fallen Valar, and lieutenent to Morgoth--in other words Sauron was effectively a kind of fallen angel, or demon. There is a land in Middle Earth ruled by a literal devil. Why doesn't God smite Sauron? Because that's not the story. It's just a story. It's a made up, make-believe story.
-CryptoLutheran