Totally, that was poor wording on my part. Instead of "last-mile delivery points" I should have said "warehouses (or stores) where last-mile delivery shipments

Totally, that was poor wording on my part. Instead of "last-mile delivery points" I should have said "warehouses (or stores) where last-mile delivery shipments originate". By purchasing Whole Foods, they solved a large portion of this, but the number of Whole Foods stores still is tiny in comparison to Walmart/Sam's Club (I think, I couldn't find numbers sadly)