In WWII, AA and AAA was as much a concern for the allied planes as it was for the enemy planes and many times the fact that there might be allied planes in the air did not make a differences, the gunners kept right on firing and it was up to the allied planes to get out of the kill zone.
Anti Air is impartial, it kills either party and doesn't play favorites and to enable the kill shooter function for the AA/AAA is gaming it, if you want to furball, then stay away from the fields and battle groups and you might stay in the air longer.
If I am flying near a field or battle group, I am not surprised that I am being shot at by AA/AAA and if I get splashed because I loitered around in a furball, then it is no ones fault but my own and I am not going to demand a change because of my flying habits, put me at risk from ground fire.
Just my take on it.