Most technological breakthroughs come about because of war, we have microwaves because of the atom bomb, the Star wars universe goes through hundreds of years at a time without any significant conflict that would necessitate weapons build-up and research which would eventually filter into civilian use. I've noticed half the world missions I've done have to do with securing the other sides' technology so that shows how in the midst of conflict both sides are trying to build-up. Theres also the fact that no one would play this game if there weren't lightsabers. Just my opinion though.