Long Live the Confederation!
I'd argue that it's trying to do exactly what the original did with regards to the big picture - treating it like something the characters understand implicitly so they'd never take time to explain it. You didn't come out of the original Star Wars knowing what the Empire or the Rebellion really is. Everything was a juicy hint -- but we went years or even decades before we found out why the senate mattered or what the clone wars were... the first Star Wars didn't even explain who Darth Vader was in the scheme of things, save Leia clearly recognizing him as someone important. It's the boring, big picture stuff that took us out of the world in the prequels, rather. It's immersion, and totally intentional.