It's not difficult as long as someone isn't being an asshole and running ahead of everyone. Also, another problem I've started to notice is that not everyone actually tries to kill. I once went through the raid with randoms on LFG and one person only had ~15 kills in the abyss and everyone else had a shit ton more, all using their supers etc. Made me think maybe Im just a tryhard fhag or some people are really lazy to not pull down a trigger.