I think the purpose of the act is to further UNDRIP's purpose as well, which is really to ensure that decisions that are made about the most important relationships are made by the people who are directly affected by them, the indigenous communities themselves.
The purpose is to reassert jurisdiction where it has been for thousands of years, and for that support to be a bit different from what we've seen historically in child welfare to really be prevention-based and strengths-based in terms of what a community has to offer its children.