From what people have said, DC has handled Roy being raised by a Native American much better than you would expect but I don't recall if any Native American readers have said anything about this. It's complicated not helped by DC's lack of focus on Native American characters or them creating ones that all too often fall into stereotypes.
Speaking of Roy and spy organizations, would you have been interested in a sort of Checkmate vs Spyral war while Roy and Dick are working for them respectively? Or would that be too contrived?