Icarum, Hyral and Dunwulf were holding just fine, the problem is that alliance between Neferak and Skarn and the inhability of the leaders from those kingdoms to make a alliance and fight those two. Icarum obviously wouldn't hold against Neferak with Skarn attacking them from behind. Dunwulf were focused on Skarn too much to see what was happening, even when Wiluven did what he could to try to make a alliance work. Athaly died in the first day because of manpower. Hyral could hold just fine most likely, they had some good players but not the population necessary for a big kingdom.
All of this together + the backslash of the alliance to Skarn with their top players moving to other kingdom is what made everyone just migrate too. No matter what argument is made here, the fact a few players made the whole server go downhill and for some reason that was the plan since the begining, Mag1c can be mentioned as a good example of one of those, he always wanted to play Farmville and at the first opportunity he ran. A server that could last multiple months now is crawling to survive a few more days, sad but what's done is done. Art of Migration at it finest. I hope the devs are aware that this fiasco is going to make a lot of people quit, because waiting 5 months of playing Farmville just to play Farmville again because of a few players is too nonsense.