They don't "have" to be experienced. It's fun to walk people through mechanics. All I'm saying is that it's not like there's some time crunch you have to meet in order to have beaten the raid... If a group of 25s and 26s struggles but wins, that's way cooler than a group of 27s beating it in an hour and not being happy about their 4th chatter white. I would rather play with people that just want to experience the raid.