It sounds like a prepared statement, something along the lines of a POW reading "We have received nothing but the best treatment from the North Vietnamese..."--while blinking S-O-S in morse code.
A little too much good to say, and no thinking American is going to believe the statement.
Either that or they have a really bad case of Stockholm Syndrome. No credibility either way.
No, but we need to give them some time.
I hope and pray that under those circumstances I would openly refuse to convert, but I suspect I might be compelled to say some things I didn't want to say. Their credibility is not harmed in my opinion, unless they continue to say that crap.