60% resi and stacking PVP power gems not res. You're gemmed offensively when the vast majority go defensive(No idea if monks are an exception). My priest at 60% resi had the same issue if a warrior or most melee trained, it it meant I would die while putting out very low pressure. I hit 65% resi and it made a hell of a big difference.
I could save my trinket for later and play more offensive from it. I am by no means some great PVPer but I like to think I have more than a basic understanding of most things (Monks not being one).
I really don't see a need to justify the damage. Was this a duel, BG arena? Did he have any big buffs? flask, berserker? What sort of gear was he in? Warriors are not the OP class they were in 5.1-2. They are in a good place now. DK's and rogues surpass warriors currently imo.
The warrior in question I presume
http://us.battle.net/wow/en/characte...in/Isop/simple