That particular website is a money making racket. I wouldn't trust it as far as I see it. It panders to ego. I recall that I have 52 on introvert and 48 on extrovert as well. My only sort of extreme one was judgement/perception. That was mostly judgement, and I have no problem with that. I am perfectly able to take the long view if something needs it. However, in my experience, one needs to make decisions pretty promptly in most situations.
There are many people today who are making money out of various typology tests. As they are self-answering, there is no guarantee that people aren't mistaken about themselves.
I recall once doing a test for a business. The lady who gave it was thrilled with my results. I took a very low paying job (sales) because I had no interest in working hard. Imagine my anger when she kept pushing up my targets.
She then told me that she had employed me because I was a type A personality. I looked at her askance. No way in hell was I a type A.
The person who did the test assumed that if someone was always first in class, always the best at various tasks, then they were competitive and drove themselves.
Nope. I was just born very gifted and multi-talented, and the last thing I did is push myself. I have no interest in competing, and I only do what is required for any job. Nothing more.
That's the problem with all these tests. They don't take into consideration the reason why people say or do things.