In spite of my opinion...and it is just an opinion....you play the game as you see fit....the most important part here is this is a party environment....its one thing to communicate/ask if its ok to go all out..its an entirely different matter to "ass-um" or just declare this is how it is...and thats that.
If the party is willing to go for it...then go for it....more power to im...but don't second guess people...that's my sticking point.
Which is why with most random groups..ill tank..and pull as i see fit <which is cautiously to make sure the party can handle it - and if i see they are doing good - i may just throw a monkey wrench in and pull even more - i may be holding back because A: I happen to have an issue with the next batch B: I'm not as confident in the party - my job is to keep the party alive - not satisfy peoples bloodlust> or DPS and just not give a bloody crap about it and deal with whatever foolishness they throw my way...cause that's just how it is. Don't expect any commendations however....ill likely give that to the guy who suffered/broke his/her back for the party.
Which 9 times out of 10...is the healer.....sorry but its true.
Again...don't have a problem with people pushing their limits...but randoms? Don't trust people that much.... Hell I call it a miracle when someone actually uses Esuna. ^_^