Anony Mous you give a reasonable scenario of a family legend that got out of hand and perhaps, by the time the papers got involved, it was too late to back down. It would require however that old JW woman lied specifically about the phone call and ran the risk of being exposed as a liar. That is not impossible but I still think on a balance of probabilities it’s more likely she was telling the truth, because the details of the pope having a cousin who became a JW, him contacting her, and the general comments he made seem ordinary and plausible enough. JWs are capable of not telling the truth like anyone else of course, so we can’t be certain.
One weakness in the legend scenario is the following:
a family legend they were related to a (in)famous cardinal who later became pope.
The story broke immediately after Ratzinger became pope, so there would not have been time for a family legend around him becoming pope in particular; a prominent cardinal perhaps. Although how many cardinals can your average JW name? Even at a time when cardinals have been in the news for weeks, I can only name a handful myself. Ratzinger was a very prominent and important cardinal before he became pope, but I still don’t think I’d heard of him before the conclave when John Paul II died. If a legend grew up about her being related to Ratzinger before he became pope isn’t it more likely that the reason it grew up was because it was based in fact? Otherwise why choose this cardinal in particular to build a legend around?