To me the 5' still has a place.The drone factors strength is cost and saturation.
While smart ammunition is proven, it’s pricy to the point of being prohibitive.
Army is going long range with rocket solutions big and small.
Small is artillery sized effect.
Cheers
Not every threat is a drone, I would take the increased range when it comes to ASMs.
Most drones would not require the use of smart ammunition, so while there is still a price factor it is not insurmountable.
I am also looking at possible future developments such as HVPs, Kingfisher rounds and cannon launched loitering munitions.