I agree that it borders exploitation of these kiddos, and the conditions they were raised in was horrific.
But that said, I don't think I really watched it for entertainment (I rarely watch tv at all). I have always been intrigued by the brain and its amazing capabilities, which is why I didn't turn it off, but I guess what I got out of it, what it drove home, to me, is the importance of early intervention - for kiddos who are neglected and abused, and for kiddos like ours, with differences that make their experience in the world different from ours, because once that window of opportunity in the brain closes, as these kids showed, for the most part, its closed.