Non sense - the most logical explanation of the passage is exactly what it appears to be. Jesus is giving the care of His mother over to, arguably, His most beloved and trusted disciple. There is nothing more to it.
All good systematic theologies - whether Protestant or Catholic - recognize two types of statements in scripture.
Descriptive literature simply describes what happened. Narrative literature is basically descriptive. It is telling what happened, but not necessarily telling readers that they should do everything in the same manner.
Prescriptive literature commands the reader to a course of action. Prescriptive literature instructs the reader to do something, to act in such and such a way. Prescriptive writing is characterized by lots of imperatives, i.e., commands.”
For example:
"But standing by the cross of Jesus were His mother, and His mother’s sister, Mary the wife of Clopas, and Mary Magdalene. When Jesus then saw His mother, and the disciple whom He loved standing nearby, He *said to His mother, “Woman, behold, your son!” Then He *said to the disciple, “Behold, your mother!” From that hour the disciple took her into his own household.
After this, Jesus, knowing that all things had already been accomplished, to fulfill the Scripture, *said, “I am thirsty.” John 19:25-28
This is a classic example of a descriptive passage which is often taken as prescriptive.
