Horrible tragedy for this little girl, to lose the only mommy and daddy she has ever known, to leave American life, and go live in a communist country to be indoctrinated. Prayers up for her.
Stories like this are part of the reason some childless couples, like my brother and his wife, refuse to adopt. They know there is a chance that they could end up in court and bankrupted by legal fees because some crack whore decides she wants her baby back three years post-adoption, or because the Russian Mafiya tries to blackmail them. In so many cases like this adoption is not forever, and the courts don't seem to consider the emotions of the child at all, only the greed of the biological parent(s).
While your points may be valid, they don't apply here.
It seems the child was not abandoned but swept up with the father's criminal problems. When the father was aquited the child should have been returned to the parents. Instead (the article does not say intentionally) the foster parents essentially tried to steal the child.
This happens time and time again with adoptions by force. The lawyer is generating legal fees by playing on the emotions of the foster parents. If we apply the logic of the adoption lawyers, just steal the baby of your choice and as long as you are a better mother or father you get to keep the child!