Your opinion indeed, ROTJ is the end of saga so will never be bettered by any sequel. Star Wars started with anh and finished with jedi. Anything after that is just am exercise in mass commercialism, consumerism and capitalism. The myth has gone, the magic vanished, the force… Tainted.
Even when I was a kid I was never content with ROTJ’s ending. I want more. Hopefully the ST will have a more grandiose ending to the Saga. While ROTJ’s ending was great when the OT only existed now that Star Wars is a Saga the impact has dissipated.