It only shows that nowadays, with GPS, store bought groceries and bottled water, compasses,  satellite communication, modern fiberglass boat hulls, and fresh crew changes at each stop - that humans can survive while at sea.  A far far cry from the ancient polynesians that were truly noble mariners. What does this voyage prove - absolutely nothing of value except to feed the egos of some. Worse, it should bring shame on those who try to capitalize on the efforts of their forefathers.