Yeah, i think they'd have a riot on their hands if that happened. It's bad enough that the nightfall has them - sometimes they can be quite easy and smoothsailing and others you get the end boss to a quarter health and run out of time despite having max time before entering the room (had this happen with Savuthun or however it's spelled, my fireteam kept dying during the bossfight so it made it hard to DPS). The most fun nightfall so far has been the Pyramidion with the fast-charging abilities and didn't have to worry about finding anomalies to shoot or hoops to jump through. Then there's that damn End The Arms Dealer portion of the quest for the raid exotic shotgun, it's essentially a level 300 prestige nightfall - don't know if it rotates but it had anomalies and rotating burns and a reduced time to clear.