and whats so bad about having a arena where everyone is on the same page. everyone gives there opinion but noone has actually made a point on whats so bad about having a arena where everyone wants to be a team and work towards a common goal.
Your very basic premise is wrong in two ways:
First, that players clearly divide into several groups, among them "furballers" and "base grabbers".
The overwhelming majority of players don't fit into any category. They do a bit of this, a bit of that, just how they feel at any given time, depending on mood & circumstances. And it's often not even clear during a sortie whuch role a player is playing now. I have taken off to protect our CV from enemy bombers and ended up "furballing" because the CV was already dead or not threatened at all. I have flown to an enemy base to furball a bit, and ended up killing the last 3 town buildings so that the landed goon pilot could run his troops. It's a totally grey area, and while leaning towards one way or another, most pilots are "grey", not black and white. The true furballers & war-winners are a minority. Just a very vocal one.
What made the MA such a success IS the sandbox mode. That (on a good day) you can do ALL at any time. You do not have do decide who or what you are. You can enter the arena and think "whats up today?". Diversity is good.
Second, that if there is a pure "war" arena, everyone will automatically work towards a common goal, and your frustrations from not getting any response will decrease.
It's far from that. You will still have a dozen generals shouting orders & insults at each other. "Attack here!" - "No, help defend here" - "Everybody join my mission"
You see this far too often in MA: half a dozen guys are frustrated because their side is getting kicked around. They agree: It's time to mount an offensive! And what happens? Everyone of them is attacking a different base while getting upset about getting no help from his team.