This is just the usual G&M hyperbole  applied to any aboriginal issues.   While it may well be desirable for someone to speak Cree, it is more desirable, no imperative,  for a student from an aboriginal community to have the math,  English and writing skills to leave there get some post secondary education.  My grandchildren's mother is South Asian, and wants her children to speak Punjabi, so they go to lessons out of school hours.   Or, make it an elective.  but don't let it water down the academics necessary to these children to move out into the world.