As so often, you say multiple contradictory things at once in the style of: there’s absolutely no hole in the bucket, and I didn’t make the hole in the bucket, and it wasn’t my fault I made the hole the bucket, and who cares if there is a hole in the bucket anyway?
You start out saying it “strains credibility” that the pope made the comment.
Then you go on to say: “He may have been polite (because he was a gentleman), but to interpret a passing kindness as some hidden theological endorsement is naive at best and deceitful at worst.”
So which is it?
My view is it’s plausible he made the comment though it can’t be proved. And if he did make the comment then obviously it was not intended as a theological endorsement of JWs. He was just being polite. I said so above before you did. Your comments don’t contradict what I wrote they agree with them.