Since you say this is progress, do you mind elaborating on what exactly this is progress toward? Even if the ASF fully changed their name tomorrow, what actual positive impact is that going to have on Native Americans?
Self-determination doesn't show up as a bank sheet entry, but it's not meaningless.
You seem to be arguing that Native Americans should have an exclusive right in determining how they are portrayed which is not only the opposite of progress, but is also treats them as a monolithic group, which is ignorant of sheer amount of diversity among Native Americans.
What have they said about this?