I think this would be indicative of any type that prefers a
Chart The Course interaction style. Since INTJs have been the only type to take this test until now, then yes it makes you unique. You should see a similarity with any type prefering INTJ, ISTP, ISTJ or INFJ.
As a result I would say that anyone preferring:
Behind The Scenes= Low Extraversion/Mid-High Social Anxiety
Chart The Course= Low Extraversion/Low Social Anxiety
Get Things Going=High Extraversion/Low Social Anxiety
In Charge=High Extraversion/Mid-High Social Anxiety
If this theory runs true, I would base it on the "Behind the Scene" and "In Charge" types need for control and the "Chart the Course" and "Get Things Going" types need for movement.