Upon further reflection, I think I also experience dissatisfaction and frustration from the intrinsic nature of the failure, when I actually did everything right.

Let me try to create an analogy, that of "battle-fatigue".

Say that, after a certain number of successful kills, battle fatigue sets in. While battle fatigue is in effect, you can fight monsters as usual. However, upon landing the killing blow, instead of a death animation, you receive the message "The enemy has suddenly disappeared." You get no loot, and 1/2 SP for the fight. I can imagine the outcry now.