INTP here.
Jung was a mystic fool, but I'm sure this test measures something consistently.
The point is, however, that this is not the "mystic fool's" test. It's the test of someone who semi-arbitrarily adapted "the mystic fool's" system to suit practical needs: namely the categorisation of the population into subgroups, towards judging their suitability for various tasks.
Without even beginning to comment on how out of order
that is, it is far from something Jung himself would do, or the reason Jung came up with the concept of psychological types
non-exclusive to each other (in actuality) altogether!
The mystic fool, mystic as he was, did not intend his analytical psychology as a more elaborate yardstick.
