There was also the Tabula Rasa fiasco..
But hey, it's a dog-eat-dog business world. Aslong as they stay the hell away from the creative process of GW2 I'll be glad. They've been good to Arenanet and GW1 is a good example of this cooperation.
Aion was 'okay'. So-so planning and so-so execution. It had too many competing mechanics that sorta make the game go bleh. Oh well, good try NCSoft.