Because atleast Pandemic gave a shit about what they where developing. They are very similar, but Battlefront had some unique perks that made it feel different from Battlefield in many ways like heroes mode, space battles in BF2, the maps were big enough instead of being gigantic like the ones in the battlefield games, the bot battles where very balanced, despite having a meh campaign in BF2 it was ten times better than any of the Battlefield ones, instant action gave players a chance to make their own playlist and go from there, Galactic conquest was a fan-favorite mode that everyone loved, and much more. Are they very similar? Yes they are but despite Battlefield being the inspiration for Battlefront, Pandemic made a much more engaging version of it with the Star Wars IP, fans of the IP got what they actually wanted in a Star Wars game featuring the main soldiers of the series with a lot of stuff to do around instead of waiting on a queue to join a match with randoms. People wanted the reboot to be more like Battlefront because everyone loved those games (inb4 they weren't masterpieces for their time), hell most didn't want a battlefield reskin not because they didn't like Battlefield, but because of the publisher behind it, EA. DICE is an amazing developer, but with EA -blam!-ing them every second one will wonder how different can battlefront be instead falling into the cash-fest scene, and if this beta proved something is that it isn't even a battlefield reskin at all, the main reaction from fans is mixed, The reboot is very different from both Battlefield and Battlefront and the consensus is that many love this reboot, many hate this reboot, you can actually see how much detail went into making feel cinematic with the gorgeous graphics and beatiful sound effects and how much went into actual the gameplay experience with horrendous maps and unbalanced game modes, the game reeks of countless dlc packs coming soon and im not saying they shouldn't do some extra content, but with the huge lack of variety in certain areas it is proved that if you want the complete experience you'll need to pre-order and pay for every single piece of dlc that EA will release. Battlefront is gonna sell like hotcakes, but everyone who wanted something similar to the old games don't deserve to be treated differently because the huge portion of bungie.net disagrees, maybe what they actually wanted is the sense of fun with an awesome star wars game with loads of stuff to do instead of making a game that only has few things available for them like multiplayer only modes and a survival mode with a notorious player Cap of two players only (seriously they couldn't let more players join), in the end we got a game doesn't feel like the old Battlefront games and neither as a battlefield game, even the battlefield games gave you more freedom than this reboot.