This bothered me as well when I was a witness. I remember a talk about persecution where the speaker said, "There is nothing that can befall us in Satan's system of things, that Jehovah cannot undo." I guess that didn't apply to the post resurrection marriage scene.
Here's another mental twister.
A man and woman in their mid-twenties have a baby. A tragic automobile accident kills the man and woman, but the infant survives. The infant is raised by another family, grows old, and survives into the new order. His parents are raised up from the dead, and he is still growing younger each day. So his parents are now resurrected and the baby is older than the parents sixty years.
"Live for the day, when you'll say, 'life without confusion at last'".
Huxley