Then why doesn't the interface reflect the building blocks of the structured content? Where the video says "The Django CMS interface", the interface is clearly

Then why doesn't the interface reflect the building blocks of the structured content? Where the video says "The Django CMS interface", the interface is clearly page-centric, not structured content-centric. It has building blocks like "feature-visual", "bg-home.jpg", "feature-content", "container", "row", "column col-md-24" etc. How is that structured content? Perhaps it can do structured content, but then why doesn't the video put that front and center? Is this perhaps an "also" feature, for building landing pages? Then why does the marketing talk about "content editors"? So perhaps it's just the marketing that oversimplifies things? :)