Should aoe damage have some form of aoe scaling much like proxy so that it does less vs a single or few enemies and scales when more enemies are present.
Instead of applying this to the skill like proxy you could incorporate it into battle spirit to read aoe’s do
10/20/30/40%etc more damage for x player increase variables.

Campaigns have devolved into less strategy and tactics and more brute force outnumber and war of attrition to take objectives.

If aoe scaling was done this way you could alter ground siege damage and siege in general.
Persisting siege applies debuffs but doesn’t damage.
Ballista do the damage to players.

There needs to be a better way to combat stacks of players and I mean actual stacks where you have 40-60 chasing and all focusing on one location of the map rather than spreading out and hitting multiple targets.
The game allows players to take the easy road when they aren’t as mechanically sound by stacking numbers. But that should be the only advantage they get, numbersz but at the risk of taking more damage because they have the aoe healing and various ultimates to counter or alleviate damage.

Thoughts