Was the tank marking monsters so you didn't have two strong DPS individually attacking other mobs? Was the tank grabbing more monsters than they could handle? This is just personal opinion, but when I personally tank, it would feel like an insult if DPS were holding back. The rotation you use for aggro management as PLD doesn't really change since lv 26, except now you have an ADDITIONAL AoE skill that you can weave in, making aggro management even easier.
It's not hard at all to hold threat from ilv 110s as an ilv 90 PLD. Yeah, some people are new/still learning, but i90 in Expert Roulette? You have to draw the line somewhere. I'm not saying you should be impolite to new players, but coddling someone who can't do their job at ilv 90 isn't going to help them improve.
