I thought Marignon was busy fighting Ctis, go figure...
It goes to show that each player has a mind of his own and probably the intel on TC scared them, enough at least to cause them to want to stop TC early. I'm not arguing the point whether they should or shouldn't attack TC. Everyone makes his own plans, if four nations were banding on me I would sure as hell feel bad about it, but every once in a while it happens, usually when I am strong enough to justify an alliance against me
Oh but I can say one thing though, a nation that on turn 40 has so much money, so many gems, extremely advanced research, all kinds of SCs and huge mage backed armies that is easily eating other strong nations is IMHO begging to be ganged upon. For me personally this was the reason to break NAP with TC, it was plain old fear of the OMG huge,light years advanced nation to my west.
EDIT, wow didn't know there's an automatic censoring bot on posts. rephrased in more consensus terminology.