This has been an issue for a very, very, very long time. At least as long as I have been involved with AH. Always had one country that had the numbers and could steam roll the others and always had a country in the hole. Way back when the squads flying Rooks used to RJO (Rook Joint Ops) where they would set up a country wide night with one squad CO in charge and coordinating the actions of all the squads that decided to participate. I think the Knights did that also later on when it was there turn in the bucket.
But always have had issues where one country had the numbers, people not willing to switch sides. Sort of comes in cycles and intensity of it varies.