Board Thread:Off Topic/@comment-207.28.159.13-20151110163641/@comment-74.254.158.41-20151111163132

The Blades had more than one purpose. They were dragon slayers before they found the purpose to serve the Dragonborn. The Blades didn't know the dragons would come back, in Oblivion or Skyrim (with the exception of Esbern). Those Blades in Cloud Ruler Temple would be more likely to serve the Dragonborn, with the recent loss of Martin and Uriel Septim, but they could have made the same choice. Delphine and Esbern didn't serve the Dragonborn their whole lives, as well as the rest of the Blades, so of course they wouldn't feel as strong of a commitment to the Dragonborn. They were different, not fake, and I can see both sides can be considered in the right. (I personally didn't kill Parthunax my first playthrough, because I liked his character and saw his side of the story.)