I agree with what you say, but I would also point out that the same conditions affect the different classes differently.
The fighter classes tend to be able to go longer without rest, for example, as their defensive qualities (hit points and Armour Class) are superior, and offensive capabilities are not rest-limited, like a spell-caster.
Sure. And if you think that the difficulty sliders should have better AI control, I agree. But I'm certainly not underestimating the capabilities of the truly average player. Normal difficulty, especially at the earliest stage of the game, should be very easy-going.
I... uh... have no disagreement with any of this. Still, I do have a reputation to maintain, so rabble rabble.
Grimace ... is that you?