I keep having this notion that Whedon being Whedon, Coulson on this show will be an LMD of the real man who did actually die. But since Coulson proved to be such a good agent, SHIELD uses him as the basis for the first experimental LMD to see if they can work in the field.
Then the twist is, "Coulson" dies again and again, being a disposable roboagent. Then shows up again a few episodes later when they decant a fresh Coulson. Seems like the Joss thing to do - make everyone uncomfortable by treading over the humanity of a beloved character.