Hero: Yep, that is very true. He was supposed to kill off Oz, and Jenny was supposed to die in an earlier episode. I believe he says this on the Passion special featurette on the DVDs.
Same thing for the scene where Giles discovers Jenny, with a perfectly chosen music.
Giles attacking Angelus is one of his most awesome moments.
Passion. It lies in all of us. Sleeping...waiting... And though unwanted... unbidden... it will stir... open its jaws, and howl. It speaks to us... guides us... Passion rules us all. And we obey. What other choice do we have? Passion is the source of our finest moments. The joy of love... the clarity of hatred... and the ecstasy of grief. It hurts sometimes more than we can bear. If we could live without passion, maybe we'd know some kind of peace. But we would be hollow. Empty rooms, shuttered and dank... Without passion, we'd be truly dead.
The only thing I didn't like was Xander. Seriously, Jenny just died and Giles went to fight Angel, stop being an annoying d*ck, not everything needs to be a joke, Xander did slightly ruin the atmosphere of the episode. This episode reminds me how annoying Xander becomes in later episodes.