I'm not arguing about solo or in team or team make up or what is more efficient way to level at specific points in your characters growth.
The fact is that for those factors being equal, it's faster to OST (and we are talking exclusively about hecklers here because you can't OST spirits). If it's not, you simply aren't doing it right with your OSTer. There are efficiencies gained from not having to kite OR pull your own hecklers and nothing can offset those efficiencies if you choose to kite. Also, the OST has no impact on the amount of XP you get per heckler, so I don't understand what you are referring to when you say you need 3-5x more hecklers to ding with a pocket as opposed to kiting. That doesn't make sense.