The one thing I don't like about Dragon Age: Origins

So Dragon Age: Origins is incredible there's no arguing that but there's one problem, at least for me. See they have this cool thing where you kill big bosses like Ogres in awesome slow motion kills. Which is awesome nothing bad about that except for one thing you don't get it if you're a ranged class. Mages and Archers don't get these awesome kill shots. Now I don't see the point in me running up and shooting something in the face, but why can't I plant an arrow in it's forehead and watch it hit the ground face first. Or hit it with a fireball and watch it explode. It's already challenging enough being a swishy ranged class and even rangers are squishy to me in this game though we were medium armor, we could at least get some of the awesome kill action.