User blog comment:Zarrath/Blades vs dragons/@comment-3076045-20130104201800/@comment-4118072-20130104203836

That's true with choice but technicaly it doesn't since you can say no you won't kill him but you are still stuck with that quest. The thing is though up until then the blades make a big deal that they are there to serve you the Dragonborn, but if the dragonborn doesn't do what they want suddenly it's the opposite. I really wish Bethesda would fix this quest and have the ability to point that out to the blade or fully tell them to get stuffed and take a hike.