I do understand Galdor's frustration. The whole point of WFRP3 is making everything more easily available and ready to play and the current approach to NPCs doesn't feel like that. If, for instance, I want Eduardo Rodriguez to join as an ally in The Gathering Storm and the PCs get to face Izka Madtooth and some beastmen, imagine the amount of flipping pages and lost tracking tokens if I want to run that the way the manual describes.
I don't blame FFG for this, though it can easily be managed if the GM is reasonably well-prepared and makes a few photocopies but indeed, ideally, you don't want to have to photocopy sheets from the book for a game that is based on a philosophy of getting away from clumsy band-aid solutions. The Creature Vault will certainly be a very welcome addition to my GM arsenal!