It´s not about be an "elitist" like you said, it´s about the environment and the ambient of the game. It´s legal reading the rulebook? yes, it´s right a la letre but not to the spirit of the game.
It IS about being elitist. As the "munchkin" remark betrays. As soon as someone starts going on about the "Spirit" of the game you can be sure they are trying to impose their own opinions on the game.
Want to "destroy a few hundred enemies in a huge fireball" "melt people with blasts of energy" or "summon Dragons"? Of course you can, but that´s not Conan is about
Oh, isn't it? Perhaps you should have mentioned that to Howard, when he wrote Black Colossus:
A terrific explosion rocked the desert, which seemed to split apart along the strewn line with an awful burst of white flame.
In that instant the whole foremost line of the knights was seen enveloped in that flame, horses and steel-clad riders withering in the glare like insects in an open blaze. The next instant the rear ranks were piling up on their charred bodies. Unable to check their headlong velocity, rank after rank crashed into the ruins. With appalling suddenness the charge had turned into a shambles where armored figures died amid screaming, mangled horses.
Or Red Nails
For in the lean hand of Tolkemec now waved a curious jade-hued wand, on the end of which glowed a knob of crimson shaped like a pomegranate. She sprang aside as he thrust it out like a spear, and a beam of crimson fire lanced from the pomegranate. It missed Tascela, but the woman holding Valeria's ankles was in the way. It smote between her shoulders. There was a sharp crackling sound and the ray of fire flashed from her bosom and struck the black altar, with a snapping of blue sparks. The woman toppled sidewise, shriveling and withering like a mummy even as she fell.
And their magicians made a terrible magic to guard the city; for by their necromantic arts they re-created the dragons which had once dwelt in this lost land, and whose monstrous bones they found in the forest. Those bones they clothed in flesh and life, and the living beasts walked the earth as they walked it when time was young.
Additionally: none of the Howard´s sorcerers foes of Conan use never a combination like that, from Tsotha Lanti to Thugra Khotan. Why? Were they stupid?
Are you really suggesting that we can't do ANYTHING unless it appears in the books?
Btw: That "Great ape sorcerer all-in-1" gets proficiency with Greatsword or with armour for any reason? think about it
From his level of Soldier he gets both.