It just puts more pressure on people wanting to try the role. Back when there were 2 tanks you had backup just incase anything went wrong. Now if you tank messes up it can sometimes wipe out your party which in turn can wipe out the entire alliance.

I personally dont mind it as the queue times actually gives me time to do other things while i wait for that 5-15 minute period. But for that new person trying to tank an alliance for the first time I have seen others in the chat be brutal towards them.