Actually, it is my understanding the DNA test did NOT match her to any particular Indian tribe or as American Indian specifically. That they found the 0.001% DNA group to be a good fit to Mexican/Colombian/Peruvian DNAs of the middle Americas, and that would seem to agree well with that chart I believe YOU posted days ago in this thread or in one of the others on Warren.
The report states point-blank that narrowing down to a particular tribe would be impossible, that it's looking for racial content. There's nothing in the report at all about "Cherokee" anything. Nor does it suggest it's "a good fit (or any kind of fit) to Mexican/Colombian/Peruvian DNAs of the middle Americas". Rather it notes that its racial genomes for Native Americans are derived from there because genomes from the US are not available. That does not make the subject "Peruvian" since "Peru" is a political construct, not a "race".
If genomes from the US were available it's logical to expect more might be found since, as the report also states, "Because available samples do not provide complete coverage of all Native American groups, some segments with Native American ancestry may be missed".