Personal Style Counselors

Just rewatching some of John Kitchener's videos from Personal Style Counselors. I'm struck by how its a system that has four types, but never assumes anyone is only one, but rather a blend. Also, it's a system of four types, but it doesn't say "here's a color palette, too bad if it doesn't work for you" instead he hand picks each and every color for you, assumedly from your blend of types.