A quick thought, may post more later: I'm really glad that the "first" Martok was killed off. The way he was portrayed in "The Way of the Warrior" just wasn't interesting. He was just another belligerent, reactionary Klingon. But killing him off here allowed the writers to bring back the great actor of J.G. Hertzler and use his skills much better, in Martok 2.0, who had fantastic interactions with Worf.