I don’t think Luke should ignite his green lightsaber in his version of the story of confronting Ben in his hut.

When Kylo tells the story, Luke has his saber ignited and ready to land a maniacal blow. But, when Luke sets the record straight, I think it would have been more effective to show him holding the hilt, but fall short of actually igniting it.

That being said, it’s probably outside the realm of possibility to actually make it that way. It sure would have made that scene less off-putting without sacrificing its purpose.