I was there... 3000 years ago.. in old travian with limits in alliances.. com7 in 2008 had Poland First to Fight... 20 alliances.. I led the winning team on com8 we had 11 wings or more..
I don't believe for a moment that limiting player numbers will remove wings.. I full agree with your goals.. more action, more mid game fighting.. its the best part of Kingdoms v the old servers..
There has to be something else... player limits won't make a single difference.