Rotter: Sorry to say, but this is getting kind of not productive, your posting lots of quotations with plusperfect and trying to see if the authors weren't somehow wrong. I'd seriously suggest to stop posting on this subject and to read carefully and to reflect deeply about the previous replies you've gotten already. There's good stuff there.
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MrPedanticPS I would agree that it's a past perfect; but a past perfect in the context of reported speech.Same here.