ROTJ is broken though, that's the point of proposing the change.
Luke returning to Dagobah to finish his training after rescuing Han only to have Yoda die in the middle of a sentence and Ben suddenly drop the Leia bombshell is a major problem for the story.
And moving the entire sequence slows the pace of the beginning down to a crawl and creates few cut away points to deal with the various characters arriving at the palace.
Breaking that scene in half and putting Ben's side in his hut progresses Luke from Dagobah to Tatooine (where he needs to go next) and maintains the momentum of getting him to rescue his friends from Jabba.
It also makes Luke look less like a headstrong idiot who has learned nothing from his encounter with Vader by shifting some of the blame for the predicament to Leia who hasn't been trained as a Jedi.
It's not just change for change sake, it's change to make the story make more sense.