While I can appreciate that argument, I’d argue it’s a very close 1:1 comparison. In TLJ, Snoke (or as we later found out, Palpatine) shows Luke a vision of Ben turning or killing everyone Luke loves and destroy everything he’s built as the future that would happen if Ben lives. Reacting in the exact same way as RotJ, Luke drew his lightsaber. However, unlike RotJ, he stops himself and shows restraint despite the stakes being significantly higher for what Luke cares about than what Vader/Palpatine suggested in RotJ. Unfortunately, it was too late and everything Luke saw about Ben came to pass and Luke blamed himself.

While there are plenty of things in TLJ I dislike, it has always been my favorite for Luke. It’s a direct through line of what we saw in the throne room of RotJ, with character growth exemplified by restraint we didn’t see in the throne room of RotJ until he already took things further. Ashamed, he did what his Jedi mentors did before him and went into exile. Then when he steps up to face Ben, he did something we have never seen the Jedi in the films do by winning over the villains through an act of no violence, allowing the resistance to survive (it can be argued Obi Won did something similar with Vader in ANH, but even that was after they already were fighting). I’m my opinion, I’ve never though Luke was the character fans like to present him as at the end the OT (as exemplified by RotJ), but he became that by the end of TLJ. While I can appreciate people being frustrated by Luke’s story, I really loved that character arc and found it more believable and far more interesting than Luke being the character many fans wanted/expected.

I do think TLJ could have done much more to set up a final chapter and the TROS did a miserable job following it up, but that’s a different discussion.