The Star Wars Formula

Oh, you mean like how they blow up Starkiller Base in The Force Awakens, because that’s like a Death Star, too, right? Right?

I get it: George Lucas wasn’t sure he’d get to make more movies, so he condensed some of his epic story into Episode 4 and then did get to make Episodes 5 and 6, so the Death Star shows up again. What was Disney’s excuse for recycling stuff from earlier Star Wars movies?