resource disparity becomes noticable at high levels. Melee classes require significant resources in the form of arms, armour and trinkets to keep up with challenging opponents.

Where the spoils of an adventure is distributed equally, this means that magic based classes have less demands and can afford to cherry-pick or create optimal gear and still have cash left over. Creation may put you behind slightly in xp, but who cares when you can spam your best abilities all day.

I have other concerns, but many are situational and do not apply to every game. Such as flying mongols and incorporeal singularities. Treasure and magical items though, are almost always a constant feature in every game.