Do you refer to Ben or Luke as badly written?
Perhaps if Luke still had faith in himself. Maybe he would try reach out to Ben earlier. But Luke doesn't trust himself. He's lost all faith in himself. And even when he returns to his senses, he realizes that he isn't the one that can reach Ben. "I've come to face him Leia. And I can't save him."
If you would humor me. How do you think it should have gone? What should Luke have done?
And as far as Palpatine goes....
1)tell Kylo to kill Rey, renewing their conflict with each other and bringing Rey's hate to the surface.
2) have Rey kill me out of hatred so that I can posses her body. "I never wanted you dead, I wanted you here."
3) with the dyad, I no longer need a new body as I can rejuvenate my body created by the Sith Eternal.
4) Rey kills Palpatine with his dark energies, and does so not out of hate, and it kills her. 3 reasons why Palpatine isn't able to essence transfer.
Any who that's my take on those....
Given the fact that in past discussions I’ve proposed many alternative ways the story could have gone in TLJ to be met by your derision and how RJ’s story of Luke being depressed is the only way it could have gone down, I’m not inclined to give an answer. I would personally rewrite TLJ completely but assuming everything is the way it is until Rey confronts Ben.
1) I would have an actual twist. Rey confronts Ben, Ben tells her that she is nobody with confidence.
2) only to be upended by Snoke, who tells Rey she is a Palpatine and praises her strength and skill while mocking Ben to his face.
3) Ben’s anger would obviously cause him to lash out at Rey and he will lose, with Snoke then using his reputation as the deceiver to turn Rey to the dark side and he succeeds.
4) Then I would have reformed Luke come in to save the day as his “redemption”, saving Ben. Luke is a redeemer, that is what makes him special. So yes, Luke should come to try to redeem Ben, even risking his life to do it like he did in RotJ.
You then get to end the movie with the heroes in dire straits. The resistance is nearly dead, Rey has gone to the dark side and is more powerful than ever, and the Resistance now must make peace with Ben who was previously their number 1 enemy. There is also no guarantee that Ben could even beat the more powerful Rey.
the final movie will then focus on Ben redeeming himself as a Jedi. Given he was Snoke’s apprentice and right hand man, he knows who he is and what he wants (thus giving the audience answers on who Snoke is). We also get to explore a new Jedi archetype which is the path of the redeemed Jedi which makes the ST worth existing (to explore this concept).
But Rey also plays an important role. He story is about finding her purpose which she tries to do through her identity. Time spent with her will also give audiences a peek into what training in the dark side is like, something that again has not been explored in movies.
Ben’s character arc is arguably based on overcoming an inferiority complex. He is a skywalker so should be powerful like his grandfather and uncle but he isn’t (losing to untrained Rey twice). He looks up to Vader, hence the helmet and chats in TFA. By successfully redeeming himself, Ben does something Vader arguably never could and thus overcomes his idol. The finale would obviously be a fight between Ben and Rey but this time on opposing sides with Ben now working to bring Rey back to the light after further instruction from Luke.
I would say both Rey and Ben survive their battle and with both having experience with both the light and dark sides of the force, are able to achieve true balance and thus develop a new way of the Jedi. This is something no Jedi has done (Revan is not included in this discussion) and thus it is the new generation of Rey and Ben who have a more comprehensive understanding of the force that become the leaders of the New Jedi order.
I would say both Ben and Luke are poorly written but for different reasons. Luke in ST is based on ESB Luke, still impatient and dogmatic in his beliefs.
Ben is all over the place, even in TFA. He is mixed and conflicted with too much light in him. He is a manchild with tantrums in TFA. Yet his backstory has him destroy Luke’s new Jedi order almost single-handily and the leader of the knights of Ren. He must have successfully slayed many Jedi students he was training with but he can’t beat an untrained Rey? Is he a a powerful competent leader or a conflicted and slightly incompetent Jedi?
But this goes without saying for the entire trilogy. Who is the first order and why are they so well funded yet so young in leadership? Why is the new republic government so blase about their own security? (the resistance was formed because Leia couldn’t get the new government to send an actual army to deal with the first order). Hell why is the resistance so underfunded when they are the people in power?
the ST is essentially watching a movie about a private military fighting to protect their country against a terrorist group but the terrorists are better funded and the country doesn’t do anything to support the private military.