That's not true, they are still standing, while KUB is crumbling.
PTG - 10 players leave or quit no matter how big, they still recover.
KUB - 3 bigger players quit/leave, they crumble like a French Army. :/
You obviously have no idea what you are talking about. you are only looing at points.
PTG just recruits more, and hey hardly have any very good players.
KUB lost few of their players but only lost points, they didnt start losing villages or fight less, if you check they are still on top with off bash points, even tho having less members than others.
Losing few players in a 30 meber tribe gets your points down of course, but that doesnt mean they are crumbling... If you check the stats of every active players in thre indivdually, you will see that thy are all doing fine.