Well, it's just the sort of thing that seems more mystical than scientific. It's disingenuous to think that the Apprentice Survivor is on the same level as the Apprentice of Gaming, in terms of ability to be a "hero," by their definition, but if you think about it more like a ritual it would make sense: take twenty-something people, all of different skills, and make them perform a specific task in order to summon a "hero," as it were.

[Not that he thinks that's better, but it makes more sense that way.]