This is partially correct. An actress with ASD joins in the last season.
They also have had ASD consultants (medical people, not people with ASD themselves) for their entire run and emphasize that ASD people are unique. They repeatedly reiterate that the main character is not representative of all people with ASD but they do have quite a few cringe-inducing scenes throughout most of the run.
It's a soap opera, man. It's not a great representation of anyone but I give them points for trying.