She was not descended from a population that had arrived in the Americas via a different route from a different Asian source.

She was part of the same deep American lineage.

This finding, combined with the morphological data from her skull, had a specific implication.

If Naia was genetically continuous with later Native American populations — if she carried a mitochondrial haplogroup that was part of the same founding population lineage — and if her skull morphology was nevertheless different from those of later Native Americans, then the morphological difference had to be explained within a single continuous population.

There was no need to invoke a separate founding event.