Race: Famously irrelevant to the whole tribal lands/indigenous rights topic
For Mr Gordon Price to imply that a group should not do something because it has not been done before is him trying to deny their agency.
They don't "have to". But they can break with it in a nice way or in a bad way.
Same way a culture can change their tradition in a respectful way or to replace it with McDonalds and Starbucks for example.
This is not confined to "indigenous people". The same critique can and does apply to any group.