The insertion of HC in the 2004 DVD’s totally invalidates the entire Saga. Since 1983 George has been saying that the OT was about the redemption of Anakin Skywalker. So was Anakin redeemed by Luke or not? If he was redeemed by his son it is only logical that he should appear in the form he last had when he was alive. That would be the old, redeemed Anakin not the young, yet to be redeemed Anakin.
I know some will say that Anakin had to appear as HC because that was the last time he was in one piece. This ignores the fact that the other Force Ghosts we see in the OT are idealized versions of a Jedi’s last physical form. That’s why Ben’s ghost doesn’t have a Lightsaber hole in it. That’s’ why Yoda’s ghost can sit comfortably and doesn’t appear to have trouble breathing, both of which his physical body was incapable of just before he died.
We need to also look at the implications that the HC ghost creates for the GFFA afterlife. Apparently if you serve the light side of the force and remain true to the Jedi ideals you are rewarded in the afterlife by living eternally in your old ass decrepit body. However, if you serve the dark side and murder those you love you get to live as a young, virile ghost for all eternity. Does that make any sense?