I know we should all have memorized our bfa dungeons, but what baffles you the most when people fail? Personally for me it’s the underrot faceless who cast maddening gaze and literally point and pound there first in the direction of the blast.
Once on Fluxflame from ML, our shaman got cut off from the group by Azeroth patches. He confidently announced “alright guys, I’m running through!” And immediately melted.
We then wiped due to laughter.
My favorite in underrot are the festering maggots who wind up for about 10 years in a general direction before unleashing their spew. Of course there will be at least one person standing in its path. Yes this happens on almost every UR run regardless of score/experience checking and these same players don’t bother to stop it with a stun/CC/knockback/etc.
How can you fail something so obvious and telegraphed after 18 months or not even bother trying to stop it ?
I wanted to nominate the maggot but I’ll often take a hit from them in some chaotic pulls. Here is why I say dps carry keys good groups interrupt everything and from a healer POV there’s only so much stupid you can heal through
Sometimes we are focused on the swarmer in the same pack just eating our faces 
I very much enjoy in freehold during the vulpera weeks, having to click through everyone, and tell the guy with the 1300 raider io to click on the vulpera
“everyone drink from X”
healer proceeds to sit down and drink
facepalm
Everyone should be doing that, using every damn mob control tool from their spellbook. For example if you’re a prot warrior fighting this trash and something terrible goes off with your shockwave or intimidating shout available you f-ed up. If you’re a resto druid and something terrible goes off and your typhoon is available you f-ed up. You’re a healing priest (yes I know they are terrible) about to gett spewed on ? I better see a psychic scream happening.
To be fair you probably should be saving stuns and knockbacks for the mob that fixates on people and tries to beat them to death. Easy enough to move out of the way of the maggot.
Should be easy yet 18 months later it is not, even for those with good experience/score in many UR runs.
If I have to choose between stopping the spew that can mow down multiple lazy people or a single mob that will fixate and slowly kill someone then I’ll pick the first target to use my mob control abilities.
Since we’re in Underrot already, the flowers that cast a 30 second stun. As a resto druid, I couldn’t dispell disease, so DPS that couldn’t kick one of the only interruptable abilities going off in those trash pulls had to sit the entire thing and shout angry things at me about not dispelling. As a disc priest, I let the DPS still sit for a second or two to bask in their failure. I run an interrupt CD tracker weakaura, I know your interrupt is available, save yourself.
Outlaw rogue has like what 8 different ways to stop maggot cast? Most decent rogues just sit on it to make it easier on other people to dodge the other mehchanics going on cause on decent keys usually pulling a blood swarmer + maggot + 4 or so more mobs on top of it.
Tell that to all the rogues I see. The number of rogues with good experience and score I see who never use stun/CC is huge, including the one I had in a TD 12 last night ignoring many casts like “riot shield” from officers. We still timed it but this kind of utility failure is epidemic.
My favorite is in AD or UR with a frost dk (blood too, but i’m usually tanking) that doesn’t use control undead, at least for the ‘hard cc’ factor.
When I was maining Blood DK I loved those dungeons! 
Seems like in every Atal’Dazar group some doofus kills the reanimation totem despite the fact we have 5 other elites to handle first.