[karambahh]

That sounds nice in theory but how do they solve inventory split?

Inventory levels for SKUs across multiple warehouses is notoriously difficult to balance, even more so for smaller (Shopify mom&pop) retailers.

If I split my inventory across multiple packers, the likelihood to get "local-ish" delivery is getting smaller and and smaller.

What I get, however, is a scalable workforce for packaging/shipping. It can result in economies of scale if and only if all the order can be shipped from a single packer.

By the way, if they use anything else than ultra local carriers, the package will anyway be sent away to a sorting center dozens or hundreds of kilometers away from the packet, if even the customer is right next door.

It's a good idea if you want to "uberize"/get a scalable packaging/inventory workforce, but it seems to me to be disguised under a green-ish marketing varnish that quickly fades away once you look at it closely.