Have you considered that it may not be an insult but legitimate criticism?
The official government stat is 1.05M FN members. They have been targeted by over 200B$ in federal wealth transfers alone excluding tax incentives, provincial and municipal funding since 2015. That's almost 20K$ per person per year, more than what most Canadians pay in taxes each year and yet many FN communities don't have running water.
I think to ask about potential corruption or at least gross mismanagement is absolutly legitimate.