That observation wasn't about the mother, or pointing fingers. That observation is about children who have suffered loss, and whether he looks sad because he's being abused, or whether he's sad because he's suffered loss. Children in excellent foster homes have the expression on their face that Codi has, and it doesn't mean they're being abused in their home.
No disrespect to his mother. This isn't about that. This is about whether you can look at those photos of him, and surmise he's being abused. I don't believe you can, although he certainly doesn't look happy.