yeah, raids make that rather scary.... cause you suddenly would go from maybe 1k-2k damage to "HOLY SHIT THAT KILLED ME 10 TIMES OVER!!".
i legit got hit with a nuke doing over 30k once cause i had no defenses up and the atk debuffs ran out (guess others died at the time or was AFK). I hope they NEVER bring that to the catastrophe raids....