The most troublesome thing about Nightcry for the Players was not its stronger attacks or its immunity to pain after its resurrection, but getting hit by the zombie blight debuff!
The Players would turn into zombie-like monsters once they died with that debuff, and while those monsters were weak, Cleric Players wouldn't be able to revive them. Moreover, they would have to wait for three days before reviving at the Lifestone if they didn't have a Resurrection Ankh!
Still, the Players who had gathered at Trinia to slay the devil were experienced veterans who had basically experienced almost every circumstance (whereas newbies would die immediately). Having grown in one event after another, all of them had great confidence and the toughness to become even more valiant in the face of greater setbacks.