I pretty much agree with everything the OP said abou this episode. Good premise, horrible ending
I did think we would see Kurn come back...I also thought that about Tom Riker as well.
I thought the same thing. I just knew we'd see Kurn again especially with what we know about Klingon physiology being redundant and self healing.
The worst part is that a Year later Worf got his Honor back and he never spared a thought for what he'd done to Kurn.
This bugged me as well. I'm wondering if there were some issues with getting tony Todd back.
I wonder what Martok would have said about what Worf did to Kurn...