I found another edit without “Devil Luke.” Star Wars: Episode VIII - The Last Jedi: Anti-Cringe-Cut (DonKamillo) (You need to download the final version of the edit). He describes changing scene as:
- The final flashback featuring Luke and Kylo has been defused to the point where Luke acts not completely out of character anymore. The following lines have been removed: “He would bring destruction, pain, death, and the end of everything I love because of what he will become. And for the briefest moment of pure instinct, I thought I could stop it. It passed like a fleeting shadow. And I was left with shame and with consequence.”
Instead after he says “Snoke had already turned his heart…” we see flashes of Kylo (from Rey’s lightsaber-vision in TFA) already wearing his mask, walking towards us and killing someone with his red lightsaber. We return to a shocked Luke who continues with “…and the last thing I saw were the eyes of a frightened young boy who’s master had failed him”. This changes the meaning of the whole scene. Luke failed Kylo because he allowed Snoke to turn his apprentice while he was under his care and not because he tried to kill him in his sleep. Also Luke does not turn on his light saber except to block Kylo’s strike after he consequently attacks Luke.