Yeah but see “why” to me is most important of all. Either of the alternatives you suggested would have missed the point of the why entirely.
Your son is gone and speaking of one’s former self in third person while trying to affirmate a totally made up identity, we’ve already seen that.
But the why is completely different. When Vader says it he’s talking about a life he left behind decades before. When Kylo says it he’s talking about a life he’s in the process of trying to force behind him. The similarity is obvious but it’s there to highlight the difference, which is the key.
If you find the word rehash a little too strong, then take repetitive. Because that is what it is to have already three stories about orphans who go out for adventure and find a destiny bigger than life while destroying a superweapon and face the evil that kills their adopting fathers.
I wouldn’t use either word, necessarily. We give George shit but I’d say “rhyming” is exactly what it is. To me, that basic plot IS Star Wars. To me it’s like a myth or legend, which is how I see the saga. It’s told differently each time but it always comes down to that basic framework. And I think it’s fitting - it’s right there from the beginning. Star Wars has always been about fate and destiny. And the original film was built on classic myths and legends. We’ve seen the hero rescue the princess countless times on film before. It’s how Star Wars does it differently that’s important.
If you see the saga differently that’s totally fair. But I find the repetitions with significant deviations rather fitting.