Casual or not, just as long as XIV don't waste my time for nothing... Something like this:

Before enter the Ifrit battle...
Player2: Oh shit, I forgot my lantern please give me 5 mins while getting it..
10 mins later...
Player2: Damn, can someone teleport me please? I am out of anima..
Player1 agreed and teleported Player2...5 mins later..
Player3: Sorry I have to work in 30 min see ya!
Player1 is seeking for a replacement for 20 mins...
Player8 joins!
Player4: Sorry, my wife aggro I have gotta go..
Party: FFFFUUUUUUUUUU

Otherwise, correct me if I am wrong, should content finder fix the problem like above?