I don't have the time on the chat but you can see in the buffs they still have full duration, and i already was with a lot of debuffs. We were attacked right in the moment when the doors opened, but i didn't take a screen-shot there because me and my team mate were trying to understand what was going on, and how they get to us.
Their names and realm are on the screen-shot of the end of the arena.
Sorry if this have some errors, but English is not my mother language.
Found similar topic on US forums: