Yes we all like to think that our pocket/EDC knives save the world and protect us from unseen dangers but in reality they are just opening letters most of the time. I guess serrations have their place somewhere but when asked most people state that it is good for cutting rope. The only problem is that serrations don't cut as much as they do tear/saw. When was the last time you cut a rope? How often do you do this? To be more precise what percent of your cutting is comprised of rope? I am going to guesstimate less than 5%, and that is being generous. Here is a visual.
So, in my wonderfully opinionated view, serrations are more of a fad item that people want because it is an added option and sometimes looks cool. I do own several knives with them but they sit in my safe nowadays. You will only find me carrying a plain edge, sharp enough to cut rope.