None of the models display any obvious forms of mental retardation, so how can you believe they were tricked? Many were beyond the 4 year statute of limitation for filing a law suit.
The prosecutor's wouldn't want them because the defense would probably be able to use it as an example that the girls could've left if they wanted, and the defense hasn't reached out to them because the escapee's wouldn't want to testify on their behalf cause they know how scummy they are.