This is as silly as the article entitled "The Cultural Appropriation debate is over.  It's time for action".   Unless he means they lost it makes zero sense. 

Feel free to culturally appropriate everyone, it is not just the white man that should have that happen to him.   That is what immigration is all about nowadays is it not?   Who cares, just respect your fellow man wherever you find him/her. 

As an avid reader I am happy to read books by any good writer be that indigenous or not.  The fact is Boyden (non-Indian) writes the best Native fiction....who cares.....  there are still many other good indigenous writers but the bigotry that comes with it will leave me ignoring this award.....shame we can't all be equal and move forward, instead of this one-sided right to be an ethnic bigot.