Prickles & Goo: Alan Watts, South Park

The creators of South Park, Trey Parker and Matt Stone, created a cartoon to a voice-over of the philosopher Alan Watts. Watts discusses his categorization of people into two personality distinctions: prickly and gooey.

Prickly people are rational thinkers whereas gooey types are illogical romanticists. What are some benefits and difficulties of categorizing people this way?