Something I was also thinking about with this, Irvin Kershner mentioned one of the main things they wanted to get across with the Cave of Fear is that Luke atp is still weak, insecure and fearful And Vader is supposed to represent the endpoint for Luke if he can’t overcome that People are mad that Anakin isn’t depicted as that “strong” figure Vader was But the point was Vader was never strong, Darth Vader’s strength is a projection, an illusion, a facade he puts up to create an image of strength to hide the weak and insecure man he is underneath Anakin being depicted as a weaker and fearful man fits inline with that idea