I'm just wonderin' - we did ZA guild run earlier today without any problems - 1 or 2 wipes, nothin' major. But suddenly, with almost same group, healer can't keep same tank up (on trash pack with 14k hps). On Akil'zon we had to go even with 2 healers, coz Eagles did hit us for 14k every single "air strike" and it was simply impossible to keep whole group up.
I wouldn't be surprised if that would happen with pug group, but with guildies it is really, really weird. It just feels like somethin' went really wrong on the server side, not on ours. But I might be wrong, ofc.