He said it is obvious that someone spent time with him practicing his talk because he pronounced every word perfectly. He gave all the praise to my parents for supporting my son.
I so understand what you are saying. I get a response like that from family members, when my children get a compliment. It's because they were raised in "the truth" is why they are good kids now. Forget that we haven't been in a few years, and my youngest was 3 when we left.
So no tongue lashing here from me either. Their actions, responses, and what was said, was wrong. Not just because of what was said and done, but the motivation behind it. It seems to me they did it, not to benifit him, but to hurt you.
IMHO, I hope that this is his not only first talk, but his last. Hope he gets out before he is too attached.