Morkus from Orkus
It isn't. Here's where you are getting in trouble. Reality is reality. It doesn't change according to perception or opinion. That's why the saying isn't, "Perception equals reality" but rather it's "Perception is greater than reality."Reality is different for different people.
Perception is often greater than reality because misperceptions like yours where you perceive an objective imbalance as balanced causes you to treat it as balanced and actually(and incorrectly) believe that it is balanced. Your personal perception trumps reality in this case so it's greater than reality.
That said, your misperception doesn't change reality or the facts that determine it. It is in fact unbalanced no matter what your perception is and since your perception doesn't go beyond yourself, the game designers need to balance according to reality and not your perceptions.
There is only one reality. There are dozens of perceptions and misperceptions of that reality.This particular true for a game like D&D. I am just look at these forums. There are dozens, if not more, realities deriving form the same “facts.”