I can't type a huge response because I'm on my phone but if you do an advanced search on my name and autism, I remember making some posts in Stephanie Scott's threads. I hope they're still there, in case anyone is interested. I am not verified so you can only take my word that this is an area I have worked in extensively. I'm not a leading expert but I do remember putting lots of effort into some posts after the Asperger syndrome label was dissolved.
While it is not a term that is used medically any more, if you substitute 'Asperger syndrome' any time Tostee is mentioned as having autism, it might help.