Sure, SE does those tasks better because it doesn't need as much edge retention to do the task. But PE blades are no slouch either. If you're going to be getting copper cables and ropes all day, you would be better served with special shears rather than a knife anyway. For EDC tasks, PE blades can cut whatever SE blades can, whereas SE blades basically only give you 1.5" inches of knife for a lot of tasks as the serrations eat up half the blade.
When your in the field and time is money you use what you have. Your EDC tasks are much different than mine. No SE knife only gives you 1.5", unless it is a 1.5" blade. Even many CE give you more. The tasks I use my SE knives for can not be done with the efficiency or duration of my PE knives. What do you mean that it does not need as much edge retention? It needs just as much, it is that an SE has up to 3X more blade surface to apply to the task. If your EDC requirements are not in a work environment like mine then a PE is fine. Most people who use SE or CE need them for their working conditions. That is one reason they are still selling made and sold. Just because you don't see the validity of their use does not mean they are useless or unpopular. Why do they make them? Because people who need them and like them buy them. Who in their right mind would produce a product that does not sell? And if your going to be debarking trees all day I think you should have a specialized tool for the task.