Here are two links from the same critic. The first discusses weaknesses in RJ’s story, and argues that TLJ’s biggest weakness is, that the story doesn’t go anywhere. There are no consequences.
Short summary:
"In The Last Jedi, a lot happens. But not a lot happens for long. Leia’s sudden and unexpected death only proceeds her jarring return to life.
Kylo Ren’s betrayal of Snoke, which leads to a team-up with Rey and himself against Snoke’s guards, implies his redemption… But it isn’t long lasting as his actions hardly reflect his intentions. After the fight, he has to explain himself to Rey, and how they still aren’t on the same side.
This is a classic break from “show, don’t tell.” Kylo has to tell us his motives for the scene to make sense. He essentially retcons the entire sequence, because it might as well not have happened. The scene ends up telling us nothing new. Kylo Ren is a bad guy. But we were already aware of that. Actions should speak for a character, but in the most powerful scene of the film, they don’t.
Lastly, when Luke finally faces Kylo, there’s a moment where we’re meant to believe this is the end for the Jedi Master. It seems as if Luke has accepted his fate as Kylo runs toward him with his blade drawn. Luke literally tells him something similar to what Ben Kenobi tells Darth Vader: “If you strike me down, I shall become more powerful than you can possibly imagine.”
Luke seems fearless. But then, we realize Luke has nothing to fear after all. He’s not even actually there. This scene is meant for us to anticipate Luke’s death, only for it to be revealed he’s fine… Only for it to be revealed a moment later that he dies anyway."
Both these points seem incredibly pedantic and overinflated to me.
In the first instance, “show don’t tell” does not mean either that dialogue is redundant in cinema, or that actions and dialogue always have to be in perfect concert, especially regarding villains (who are often by nature duplicitous or unstable). The entire point of the throne room sequence is to set up an expectation (Kylo will side with Rey) that is then upended; in much the same way as the action at the end of ESB sets up an expectation (Vader wants to kill Luke) that is then contradicted by dialogue (“I am your father”) rather than action.
On the second point, he’s just being incredibly literal. The entire subtext of the dialogue is not that whether Luke will literally be struck down - Luke has already made it clear throughout the film that he does not fear death - but that in opposing him, Kylo ensures Luke’s reputation will echo throughout the galaxy and that thousands will be inspired by his example, which we see happen in the final scene.
To say there are no consequences to the events in the film is absurdly reductive, and frankly typical of the wilfully and uncharitably misreading “criticism” I’ve seen so much of about this film.