I think the other problem is that people expect you to know to do that? They don't say anything even when you say you're new to whatever it is that you're queued up for.

I just got up to Labyrinth today and the previous alliance raids no one really did mechanics, we just hit boss and it died. That's why I'm saying it feels too easy, I still have no idea what the mechanics are for the previous raids even though I tanked the bosses in them. :|