Disclaimers first.
I was not there.
I don't know all the circumstances
I have never died on a plane.
BUT
If I was enjoying a first class snooze I'd be shocked and horrified if the crew placed a corpse next to me. If there were wailing and gnashing of teeth relatives on board why the hell was not the corpse placed next to them?
Why not switch with back row next to window and place relative next to deceased. Sorry, I am with the complainant on this one. And if it happened to me I sure would not travel with that airline again, ever.
Sign me, JASSLFWPYW (Just another stupid self loading freight who pays your wages.)