Could not possibly disagree more on whether it's boring. I'm not sure where you got the idea that it's the same stuff over and over, did you mean the stuff in the prologue mission, because once it 'opens up' post prologue you can do whatever you want.

There are some rocks you can't jump to, but they're pretty few and far between and mostly situated in major story areas or arenas that they don't want you cheesing a fight in. Other than that, I was all over the mountainsides, sliding up and down hills and slow mo jumping off cliffs. I highly recommend giving it another shot with the mindframe that it's a different kind or action RPG than you're used to, I promise that the story is compelling and the bigger monster takedowns can feel so satisfying.