Whether the specific ancestors of Shuká Káa were themselves part of the initial coastal dispersal — whether they came through the archipelago as part of a broader southward movement rather than settling there directly from an interior route — is a question the current evidence cannot resolve.

The genomic evidence places Shuká Káa in the founding ancestry of the Northwest Coast peoples, but it does not specify the specific route by which his ancestors arrived on the coast.

What the geography of the archipelago makes clear is that it was a corridor as well as a destination — a place through which coastal people could and would have moved in both directions, and a region that was integrated into the broader coastal network through which people, ideas, and goods moved along the Pacific coast.

The specific role of the Alexander Archipelago in the larger story of Pacific coast dispersal and coastal cultural development is one of the questions that ongoing archaeological and genetic research is working to address.