It should just be permanent for everyone. Sometimes it really *s when you just keep killing the same weak guys over and over, and you want to throw them a win because they only need 1 more for the daily chests. Obviously it's even worse if you are the guys losing all the time.

Not even losing is the worst... it's knowing you will lose anyway and just staring at your team dying slowly and painfuly, without ability to just make it fast and skip to another fight with hope for better luck- and slowly losing will to fight and to join this event more and more...