JayUtah
Penultimate Amazing
This guy, Tyler Henry, projects an innocent, fresh-behind-the-ears, mama's boy. Yes, he lives with his mother. And yes, he came out as gay. Oh the shock. So over all, the kind of sweet, young, shy, fresh-face young man is someone to trust!
Or someone we want to please. Psychology teaches us that we curry more favor with beautiful people, regardless of the person's sex or our orientation. We want to please handsome men and beautiful women more than we do the less attractive. And a common way to curry favor is lenience, letting people get away with more.
And obviously he's a better television personality if he's young, handsome, and charming. That helps answer the question of why him and not some other equally talented person.
Part of the technique is to lower the subject's standards for a hit. You do this explicitly by emphasizing the inherent uncertainty of the exercise. But you can do it implicitly just by being someone the subject wants to please. That way, if you get reasonably close to a hit the subject gives a beautiful person the benefit of the doubt.