Sorry, but the idea of having only one weapon the entire game, and all that changes about it is that numbers automatically go up as you level up sounds really boring to me.
An "Action RPG" is not defined by the fact that you can get different pieces of equipment instead of upgrading the same one. An action RPG is not defined by the fact that your warrior characters can use skills instead of just repeating the same basic attacks over and over again.
Minchi that idea of hiding the visibility of the enemy's level would not in any way solve seggor's complaint.