Whether the cylons resurrected or not is not the point. If you want to consider yourself on the moral high ground opposing your foe, you don't sink to their level. Barbarism can't be defended ever. There was an interesting moment (one of the very few) later on in the show when a model 6 killed a soldier because the soldier had watched her previous incarnation die slowly. "I didn't do anything to her, why did she do that?" was the cylon's gut reaction. There seemed to be a huge disconnect here between what the cylons as a people did and what individual grunts did. Much like, y'know, human soldiers? The show started off with one unified group trying to get rid of another owing to their dedication to one ideal. By the end it was just a big old mess with everybody being exactly the same. But then they were the same from the start; it just took them far too long to reach that conclusion.