The problem is that people don't listen, I spent the better part of last weekend trying to teach people the mechanics of the different bosses, and what I got from many groups was people distracted by other stuff, people trying to take vids and post them, posting shit on facebook or instagram, or just not listening and then causing countless wipes, and plenty of arguing about what strategies were the "best". Can't really blame people for wanting a good group to run it quickly.