If Lucas wanted us all to identify Hayden as Anakin in ROTJ and forget Shaw, then he should've done it right by putting Hayden in some old-age makeup and reshooting Vader's death scene and matching it up with the '83 footage of Luke. Same for the ghost scene. It could've been done that way.
But hamhandedly pasting some pre-existing ROTS footage onto Shaw's head is just pure douchebaggery.
And this clip doesn't do it justice at all. In fact, I think it's even worse.