So why is the sorceror necklace an inverted pentagram?

[Mister Magician]

Even the sorceror class symbol is a skull of diablo with a flame leaking out of it.

the necromancer necklace is an upside down triangle, which doesn't make much sense either, but at least it isn't the symbol of the enemy faction. Why not give the sorceror the cheeky "is a freemason symbol but most people wouldn't know that" necklace, and give the demonic one to necromancer? Even necromancer having it wouldn't make sense.

It's like how the only appearance of a priest or paladin is for necromancer (the cash shop armor, and the paladin shield in the season 2 pass is necromancer only).

[Mister Magician]

Is this ever addressed in game?