To me, honestly, leveling hasn't had any danger since they took out group quests that required elites be killed. I remember back in TBC doing the group quests in outlands. You actually needed some help with them if you did them at the appropriate level. Now every quest is pretty much just a faceroll. I'd rather just be able to fly around and get it done myself, but everyone is different in how they enjoy the game so I'm not gonna speak for them saying that it should be one way or the other.