An interesting article, and I understand and am sympathetic to the wish to go back to some of the old ways.  But it appears that time travels in one direction only.  And ancient Hawaii apparently had at least one significant change before Capt. Cook arrived.  The linguistic evidence shows the closest relationship between the Hawaiian language and the language of the southern Hiva islands (now called Marquesas).  Yet the Ali'i were described as noticeably taller, stronger, and had connections directly to Samoa and Tahiti.  Hawaii was not completely static or homogenized.  It also is useful to view the arrival of Capt. Cook in the context of the entire "Age of Discovery" that started when the Portuguese began exploring the coast of Africa and beyond, Columbus sailed to the "new world", the Spanish Conquistadors decimated what we now know as Central and South America, the French and British took North America, and the Spanish colonized the Philippines.  The Hawaiians did better than most.