^Well, I agree about ROTJ, but OT purists' main argument against the PT is that it's "too dumb", while every one I've ever met loves ROTJ.
SW is not supposed to be overly-serious.
"As you can tell, these films don't take themselves seriously" -George Lucas (AOTC commentary)
"These films are emotionally healthy by design" -George Lucas (TESB commentary)