I think I may be missing the point of what the article is getting at with API-as-a-marketplace versus traditional API marketplaces. I think even after reading

I think I may be missing the point of what the article is getting at with API-as-a-marketplace versus traditional API marketplaces. I think even after reading the article and looking at some of the examples, I'm confused at what's being talked about here, and some of the additional concerns that would arise with something like wearbles. It seems like API-as-a-marketplace are providing services where an Instagram-like company could add the "Instagram shops" section right into their application as opposed to have to make a separate shop and checkout process?