The issue is the planes are an all or nothing weapon. They either completely overpowered, so you create a counter and it completely nerfs them.
The aa has far too much range now, and the damage model makes it hard unless the ground team are co-ordinated and taking out aa through sniping or capture.
So either scale it back and make planes less deadly thus not impacting the flow of the game so immensely or put up with inbalanced aa.
The other issue is that the aircraft are too capable at both ground and air attack. Looking at bf4 games the jets were ok at armour but not so good at soldier killing. Helicopters on the other hand had more in common with BF V in terms of op, and were constantly being nerfed or modified. Things like double flares in the attack helicopters were a massive issue for balance, but there were sooo many methods for taking down attack choppers that it wasnt as bad as BF v bfv.
The bombers needed a counter because there was literally no way to take them down from height. So fighters are introduced. Fighters get boring if they take downall of the enemy aircraft so you give them limited ground attack, but reload timeis too fast so the fighters become op. So then you introsuce heavier aa which completwly undermines the ability of .fighters.
So end result is...bomber kills a few soldiers or tanks, good fighter pilot akes down bomberand dominates, so soldiers camp in aa.
To break the cycle you almost need to limit the attack ability of the bomber against soldiers vs say armour or improve bomber rsistance to fighters. Then aa becomes less necessary to be as powerful. And fighters wont need as much ground attack capability.