The art design was never the problem. Nor were the effects. Or the music, or the editing. Or the actors/actresses. It was the screenplay.
The Sequel trilogy did everything right except for the story, and the handling of the legacy characters. They did a better job on virtually everything and better than the prequels except for worldizing and the lore, and the characters. But they had an unlimited budget practically and all the years of advancement of technology the prequels and originals afforded them. and they couldn’t top Return of the Jedi.
They had a vast canvas and could have done almost anything post ROTJ, but they remade the OT instead. Or inverted/subverted it in places and said they were clever and original.