This is just my two cents: I agree that he needs to work mostly on social skills and classroom skills at this point. I have a son in special ed preschool for intellectual disability and he has many kids like yours in the class. What I find is that the parents are hyper focused on how smart the child is and getting him to learn, yet are unaware of how poorly they actually interact with their environment. Many parents are not aware that their kids language and speech and inability to empathize are big concerns and need remediation and intervention early on. They seem to be too afraid that their kids will be labeled intellectually disabled like my son. It is a really big disservice to their kids. My experience is that these teachers are masters at helping kids on the spectrum, but parents often interfere too much and don't let them do the interventions needed focusing rather on academic stuff. I feel for the kids (and the parents too of course.)