It's our fault the blight is there in the first place. I remember Shae Nosferatus going "Yay undead blighted around Crim, no more daimons!" It gave me quite the hysterics (not really but it was funny nevertheless). In terms of manipulating players to cause their own destruction (myself included) this Invasion was quite successful. I think 3 realms were misled into attacking the Light, and almost every realm except the ones with the Light temples and...Thalmarkin (oh wow they're still alive. lol, Undead phails hard), aligned with some faction. Ergo, the lands lost to the NPCs get lost. Too bad for not "keeping the light of hope" or whatever the heck it was. I personally blame the adventurers.