Well, hopefully he won’t be ostracized by you or the actual professional scientific community if he does.
I will add the Myers-Briggs Type Indicator has helped me get a much greater awareness of myself.
I took it 13 years ago and then again last year and I have changed quite a bit.
Numerous people I have had the chance to converse with that have also took it, displayed similar results.
So yeah, psuedo science or not the work of Carl Jung, is relevant, unless your a devote scientologist i guess.