Polynesians: Made in Taiwan

The Economist has a short report on recent research into the origin of Polynesians:

MAORI legend has it that Polynesians originated from a place called Hawaiki. Where Hawaiki was located is a mystery. But the toings and froings of the Polynesians -arguably the greatest seafarers in history- have long intrigued researchers of an anthropological turn of mind, and two of them, Jean Trejaut and Marie Lin of Mackay Memorial Hospital in Taipei, think they know the answer to the riddle of Hawaiki: Taiwan....

In a study involving 640 people from nine Taiwanese tribes, Dr Trejaut and Dr Lin found three mutations [in mitochondrial DNA] shared by Taiwanese, Polynesians and Melanesians (who also speak Austronesian) which are not found in other Asians. So the mystery seems to have been solved at last. Where the Taiwanese came from, though, is a different question again.

Mayhap Haunani-Kay Trask can find some grievance here to rail against. I have just noticed that she got her PhD at University of Wisconsin-Madison in 1981. Why aren't I surprised?