The issue with medical definitions of disability is that they ignore the subjective, lived experience of the people affected by the constructed definition. Defining a condition by observing just outward behaviours (this is called positivism in science) actually describes the perspective of those who don't have that difference, not what the difference actually is, what it is to be born with that difference, or experience the socially constructed prejudice of the normative majority who don't share that difference; normative authority figures, such as psychiatrists, are privilieged to construct definitions which all members of the normative group can use and benefit from in some way (even if the benefit is only that they can feel normal/superior to the different/disabled, or have a label to apply to a different minority group).
Interesting though Jung's thinking was, and still is, he very much based that thinking on the conception of collective archetypes - collective being a very important word - which he thought were perceptions buried in the collective unconscious. The genetic diversity in the ASD spectrum, combined with the diversity of cultural experience and family of origin experience makes any single one of us so unique that I don't think Jung's theory can be cherrypicked to suit a particular neurological difference. It does apply perhaps in that we are human and share in the human condition - if the collective unconscious exists, then we are affected by it because we are human, not because we are autistic.
I think Jung was very important in challenging the rigidly narrow conceptions Freud formulated - some of which we now know to be ridiculous, others we now know to have been deliberately misrepresented by Freud himself (based on work done on the archives his sister Anna Freud made available to researchers like Jeffrey Massam).
We live in very different times now, and the work of those 19th century men seems to me more of historical interest than descriptive of the actual lives people live in the cultures that we inhabit.