I get it, DBW is ****ty for retri, but sadly it's not ninja. Where as DBW isn't that great/good for retris. Being a PUG, I can only expect MS > OS mentality for the rolls, ignoring BiS > MS > OS. If he didn't state retris are not allowed to roll for DBW, there's nothing that can be done. It was his raid, his rules, and you didn't bother to ask for clarification about loot rules and priorities.
It was a douche move, but I hope you learned something about PUG raids.
BTW, don't expect everybody to know everything about every class, there are some "wonders", if you know what I mean, around the world.
