I'm sure I have seen WOB that directly refers to the difference between Kaladin's and Shallan's disposition that probably is to point out that not all Nahel bonded suffer from SAD.
Also I think ASD is always going to be sensitive area as there is still so little we know about it's causes, only recently it has been theorised that it MAY be caused by miswiring of synapses in the brain whilst the brain is developing in the womb but this is a very recent theory. In this sense then how would you cure it, I would guess anybody who had their brain cured (rerewired) would have a lot of relearning to do.
My partner is currently undertaking a medical degree and she is very interested in Autism and she has problems with those who do say it can be cured.