Ah the Hayden Shaw Ghost topic. It isn’t an easy answer and I personal don’t think there is a real wrong or right answer on this, since you got both the reality problems (Movie made years ago with a different actors) and then weird lore implications due to the special edition. (Wait … why is he young and the others are old? Que?)
In my, erm, “head canon,” the lava bath Anakin took messed him up physically obviously, and his voice. (Lava up to his head and neck, so it could affect his voice box.)
So in some ways, I am “ok” with the Hayden ghost, since the ghosts we see are based on how they look at the time of their death, just minus any problems. So if you lost an arm, you git it back! etc. Got “ugly” from some lava? No problem! It their “natural look” at the time of their passing.
The issue I have is it being “young” Hayden change in ROTJ special edition. Now I know, because of the timing of the prequels Lucas made the change.
So, for me, although I grew up with Shaw, for the sake of the saga to all connect it makes more sense with Hayden.
Although with the new Vader series having Hayden back, I’d use his face/picture to change ROTJ to line up with an aged Anakin as well as with what Jonh has down with his scene.