6k AoE!!!, are you sure it was a guardian?. Sorry, but i can´t belive it. Guardian have 2 AoE, one with poor damage, and the other AoE is Foce Sweep (15 sec cd), with FS maybe can do 2-3k crit, but never 6K. To many Defensive stuffz?. Mmm... 2 guards (10 and 12 sec) with 3 min cd.
Anyone who says this class need a nerf is playing class that need a nerf.