Rule of thumb:
Nobody in a 4 man pug cares about your personal issues. Shut up, do your job, don't get killed just like everyone else.
Nobody in an 8 man pug cares about your personal issues. Shut up, do your job, don't get killed just like everyone else.
Nobody in a 24 man pug cares about your personal issues. Shut up, do your job, don't get killed just like everyone else.
Nobody on the forums cares about your personal issues. Those that do just want to make them worse.
I'll take an iLvl 55 that shuts up, does their job, and avoids getting killed over a mouthy iL90 that thinks they deserve a drop in an endgame dungeon the first day its out.

It's a new dungeon, don't expect most of the server to know how to make up for other inexperienced players when they're inexperienced themselves. It hasn't even been 24 hours. Log off for a while or spend a day staring at the beach in Costa del Sol if you need to blow off steam over unsuccessful dungeon parties.