Warhammer Fantasy - Lore of Nurgle - Cloying Quagmire incorrect description

[Dr. Cheesesteak]

I checked the WoC FAQ and didn't notice any changes, but per the WoC army book, if a model passes their respective armor test after the Initiative test, they die. That's right, they die if they pass the armor test, as if they sink in to the quagmire b/c their armor is so heavy.

Army Builder just says "must make an armor save or die", which is either incorrect or just misleading.