Really who does pay attention to the story in fighting games? The people who like to complain, I mean when Lui Kang and Raiden popped up in the next to last Mortal Kombat game, most people were like 'Yay!', but few people had to ruin it because there was no logical reason. Take it has it is, fanservice. Fanservice has no logic and I'm not talking the nekkid type of fanservice ;p

And Lightsabers are the coolest weapon ever. Whether or not you like Star Wars.