The distinction is that you would never pay someone to learn how to beat the Orphan of Kos for you; the pleasure is in getting your ass kicked to the point where you throw the controller across the room, only to pick it up again a couple hours later. That's exactly the experience these Bullshit Games aren't creating.
I don't think it's true that nobody would pay to learn it. A friend made significant money as a dota tutor, and there's whole sites full of people selling tutoring time https://www.superprof.com/lessons/gaming/united-states/. Similarly, people pay for cheats/unlocks/walkthroughs.
