The game was supposed to be easy to complete on any given level.
Its the job of a player to find the right formula.
This is why nobody able to beat the game on hard for their first playthrough because none of them found their own perfect formula aka build yet.
This game even hand out powerful books and gears later on the level to help you accomplish that goal.
Now, imagine if the AI hit hard like in Dark Soul and focus fire 100% of the time on your glass cannons, it would be a different story. And when I say "hard" I'm actually mean a single hit will reduce your total health to halve and completely ignored your defense.
Boss hurt even more and they'll hit on you more frequent =P
