That's the whole problem with ROTJ as it currently stands.
It doesn't feel like a proper story it feels like a spoof of pre-existing stories (and I don't just refer to the fourth wall shattering Tarzan call and the Emerald City reference).
You have Harrison pulling funny faces at the teddy bears, the quality of his gurning aside I understand the reasoning for it. Han doesn't see the little furry men as a threat but the pay off should be that he comes to a rude awakening and gets genuinely worried not only for himself but what these sharp toothed, sharp speared creatures have done to Leia. Instead he is cracking cheap jokes while they are getting ready to cook him. There' no realisation of the tension that comes from hubris gone horribly wrong.
In ANH the plan to rescue the Princess from her cell is made up on the fly and it goes wrong and they (including the droids) somehow wriggle themselves out of the situation with a mixture of plausible luck and decision making that makes sense. The whole Bespin experience is pretty much the same.
In ROTJ the plan to rescue Han from Jabba's palace, if it exists at all doesn't make sense.
It's not as if there was a clear plan that goes wrong creating new perils which have to be thought or intuited out of, the solution hinges on people being in the right places but somehow places they had no idea they would end up in (I don't think Artoo has latent Force powers so it's bleeding lucky he is put on the sail barge to fire the hidden lightsaber in Luke's direction).
Ben might not believe in luck but the whole situation is a mass of random and the leads have planned this for the length of time between the two films (looks like three years but they might have aged fast worrying about the details).
The same goes with the Ewok traps.
For a guy who in the SE and later the PT felt the need to show us almost every physical transition (ship lands, people get out, walk to door, people get into ship ship takes off again...yawn) Lucas shows no emotional transition from Leia being a responsible Rebel leader to rushing off to save Han (ESB Luke style).
At the end of ESB she is in the fleet and sending Lando and Chewie off to prepare the ground for a rescue.
Would it have hurt to have a bit of conflict in the Alliance council resulting in Leia going off to Tatooine and Mon Mothma being left in charge of the Rebels?
Leia is still a high ranking member of the Alliance and privy to secrets that Jabba could sell to the Empire.
The whole Han going from stoic loner to the guy who saves Luke in the trench and the frozen wastes of Hoth is driven by character conflict. It doesn't just pop up.
It would help sell the idea Leia is Luke's sibling if we see her do the sort of thing he did in the previous film (defy her superiors to rush off to save someone she is emotionally attached to). But no like Manikin Skywalker in the PT we aren't meant to see the characters develop anymore, now they just morph to serve the needs of the action sequences.
If once sequence illustrates everything that is cheap and nasty about ROTJ it's got to be the briefing scene.
A truly boring plastic set filled with people wearing recycled costumes and unconvincing masks, props wheeled in because they can be not because they make any sense (is Ackbar close to death or something as he has two medical droids in the room). we get no character moments from the pilots and the main character interactions are corn syrup (the two groups don't interact). It would be nice to know who these Bothans were before have my emotion chain yanked by Mon Mothma.
Compare that with the briefing in ANH, it's a realistic environment and it's just the leaders explaining to the pilots what they have to do, they voice concerns about the mission and Luke interacts with them. The main cast connect to the soon to be explody people. This helps us care for them when they get picked off. It's a bit of an info dump but feels like something a small military force might actually do on the eve of a last stand.
When the battle commences in Jedi the same awful plastic amphitheatre is re-used by a couple of people as some sort of video console.
You'd think if they were stuck for space they would have tactical displays come down from the ceiling and the room would be full of people coordinating the giant space battle on their giant spaceship. So in the end it just plays out as more set recycling.