Doesn’t fit at all, and what’s more it shouldn’t have been even expected. It sounds like a mutual misunderstanding between the parents, who hustled off leaving the boy Jesus at the temple, who then occupied Himself talking with the priests and amazing them. Not His fault. He could express sorrow for the parting without having to “beg forgiveness.”
Or in the hypothesis of a sinless Mary, she had counted on Joseph but he didn’t follow through... but still... at any rate for her to have been talking about Him as though He had done something wrong was wrong of her. A sinless Mary ought to know what was up wouldn’t we think?...
It’s like the story just doesn’t support the sinless-Mary explanation, the more it is looked at.
And maybe that’s dawning on Francis even though he’s looking at it from the wrong angle. It might have to be Catholic theologians who will have to do some apologizing... not Jesus.