Pandemonica,
Literally the player is making less choices on positioning and less choices on spells.
Exactly this.
The problem is that the game is only balanced in regards to those environmental mechanics introduced by Larian (ie surfaces and high ground / backstab).
In doing so, you lose class flavor which makes D&D so fun to play in the first place. When I'm starting to play my wizard, warrior and ranger the exact same way in the game, you know there is an underlying issue.
