As El-Jefe posted, it has never been confirmed if he is on the spectrum. Maybe he is and that is the cause of his outbursts, maybe he is just an ahole, maybe its both, maybe its neither or its something else.
Regarding any punishment Iowa may give DeSanto, people need to keep in mind that we are only aware of the public outbursts at competitions. We do not know if DeSanto has had any other behavioral problems in the room on campus, etc.
When Brands brought him in from Drexel where he was removed from the team, there were bound to be problems.