Yes, it's fun and far more rewarding than siege
No wonder the current dev team sucks, they only take their opinions into account and try to pass it off as widely-accepted facts. Maybe you prefer battle over siege, that's fine. But siege has (had) a large playerbase that was just as dedicated, if not probably more so, than the battle playerbase. At least in NA, siege players would rarely venture into the battle server, since they found NA2 to be the more fun, more rewarding experience. You said yourself that there is no clear cut objective in battle. Well in siege there is. This allows for you to have all the fun of battle (slaughtering your foes) while also protecting or capturing the objective. It allows for some more 'heroic' sort of actions, which some players prefer. Clutches in battle can never live up to clutches in siege, where you can fend off an entire team alone (sometimes fighting the same guys more than once), being the last man taking/defending the flag. It has a much more "epic" scale, even with a declining population. Contrary to popular belief, siege players didn't all up and join the NA1 masterrace all of a sudden. No, too much tampering with our already dying siege community pushed the rest of the die-hard siege fans away from this game entirely. When I wander into NA1, I don't see a single long term siege player, save for a few like myself who are mostly around to simply continue playing a game with their buds. And here we have such a biased goup of devs balancing our weapons, making our maps... sheesh.
Relating back to the original topic... siege also had the fewer number of ranged, and there is rarely any room for HA or HX. Melee cav can get by on some maps, but luckily none of the scum of crpg can really play all too successfully. Despite the fact that siege is inherently made to allow for ranged to shine, there were always far more melee players just looking to hack and slash compared to archers just wanting to camp the top of towers. Also, in siege there is much more cover than the far-too-common open field maps in battle. Couple that with more teamwork (shielders going first up ladders or into the ranged nest) and siege always made for the far more rewarding game mode.
This has been your "Wake Up Sheeple" announcement, brought to you by the Repopulate NA Siege 2014 Movement.