The only thing that was said in this initial post was a denial of access. It never mentioned a court agreed to interviewer. It read that it was intended to deny any access. In fact the parents went in hiding with the child.
It was clarified further down the thread.
The parents were always willing to submit the child for independent third party examination. CPS wanted custody of Christopher in foster care before even beginning an examination and then only by their contract therapists.
IMO, the parents were absolutely right to hide the kids.