And the fight are not the only thing in the game, some puzzles were more than broken imho. (the one with the weight for exemple, or the one with the 4 switch in Leandra's room (that 4th switch man...)
It took me 4 hours to passby the Deaths Knights in the mine.
They are hard, not broken. Broken means that they don't work. But they do. They just require either clever combining or a lot of trying...