The concept of hypercarries seems totally out of place.
It seems like they are just there for the sake of power fantasy. Get fed, slaughter the enemy team uncontested, because of raw #s. To be clear i'm not talking about marksmen, their kind of feast or famine gameplay is a different from these.
There really isn't any strategic advantage to them, where it could be argued that someone who has high clean up power like katarina does have a place. Champions who are designed around getting fed (at any point in the early-mid game mind you) or flopping just don't seem like they have any purpose in THIS game. That's not to say no moba could use them.