But that is always the difference in RPGs between players. You can enjoy the game or eventually suffer through it. It's what Desiderius actually all about - he doesn't really want you to win-all. He wants you to be competent enough to enjoy the game.That is exactly the issue. You CAN win all these encounters if you smash your head against the proverbial wall long enough.
If you want total punishment, you'd have to go into realm of hard counters. Sadly, since 2d edition/BG, it's not supported as much. And then people would whine about "puzzle fights".