"The accuracy of the Ostwind at max range is nearly non-existant which makes the AoE buff basically pointless at long range."
I will correct you about this one the last time, maybe you will get it finally. AOE does not change with range, their is no such thing as "buffing the AOE at long range". Far AOE is the damage multiplier for the Outer Radius of the explosion no matter where the shell lands. An Ostwinds AOE is the same at close range as it is at long, meaning the buff is not at all pointless. This goes for all explosive weapons. You are acting as if AOE behaves like weapon penetration, that is not at all the case.