I've been thinking that the Five Factor Model is the root of Intuitive snobbery. If high Openness to Experience is indeed correlated to Intuition, then here is where the bias becomes clear.
According to original Keirsey statistics 75 percent of the population is E, while 25 percent is I. The same goes for S and N, respectively. There doesn't seem to be a bias toward Introversion because, statistically, it's in the minority, so why wouldn't the same hold true for S and N?
FFM, on the other hand, seems to glorify Openness as being "cultured," "sophisticated," "intellectual," and "creative." While the MBTI describes S and N as both being healthy lifestyles, the FFM doesn't see it that way. I suppose that when psychoanalysts get their Ph.D's, they automatically assume they are better than everyone, and so they poison MBTI typewatchers with the notion that Intuition is better than Sensation.
With the way the FFM is designed, the Sensor is equated to being a brute perfectly satisfied living a life of ignorance. Specifically, the FFM seems biased to the ENFJ, since in addition to Openness (N), Extraversion (E), Agreeableness (F), and Conscientiousness (J) are welcomed in open arms, while opposite functions in each dichotomy are seen as under-evolved.
I feel that the FFM is a product of professional psychiatric practitioners with heads stuck too far up their asses that have decided to create a passive-aggressive method of demonstrating their own superiority. And when it is correlated to the MBTI (which is often overlooked for not having Ph.D credentials, but which was designed with appreciation of all differences in mind), then there does become an ideal type.
Apparently, these psychoanalysts with their degrees framed on the wall are too brutish and moronic to realize that a truly great mind doesn't need an education to understand the world.