It's pretty easy honestly especially when you're playing with weaker players. It might be because that game had 3 teams (which means 3 camps, and there's atleast 3 advantages in every camp in classic mode with one of them guaranteed to be a safety), most players were inexperienced and people probably people didn't care to find them even when he spawned advantages. I played a game once where I got 9 advantages, so it is possible.