is it okay to not enjoy big pulls?

[Wyndam]

So?? You chose to tank. You're not taking on some great burden against your will. Yes, it's a game, but, again, it's a team game. If tanking according to your group's desires stresses you out so much, reroll as another role. Tanking is the easiest job in dungeons in the first place at 50, 60 and 70. Hold hate, position mobs, rotate cooldowns and self healing as necessary, do some extra dps if you want. That's it. You're only responsible for the group wiping if you don't do the first three.

I'm not saying I'm a martyr. Play any MMO and it'll be the same story for the same reason. Precisely because it's a team game you need to trust that your teammates have a reason for doing what they do. I might not pull wall to wall, for example, because I may see the two melee DPS in the group and know they'll lose more uptime dodging AoE than we'll gain from picking up another pack. Or that the healer won't be able to contribute DPS at that point. Or that adding the next pack on top of the pack and patrol I just pulled is going to stack up 3 AoEs which are going to be more groupwide damage than the healer can keep up with. In another game in another life, maybe I knew that pulling a third group of those dwarves meant that the entire party would be stunlocked to death.

It sounds like you're trying to take the opposite argument of "It's my sub, I do what I want," and say, "Yeah, well its our subs and we outnumber you, so you do what we want!" No. Nobody is anyone's boss here. They have their own job to do and as long as they're doing it, leave them alone.