Confuse of MV : Website > Content

Editing page: First vendor page

I totally don't understand why Cs include it to vendor's feature.

Why we set it to Parent page:root level page and the hyperlink is Instant Demo - CS-Cart Multi-Vendor Demo Try Free for 15 days? Is vendor allow to use block? Why vendor can manage custom blocks?

Under Customer> Administrators, why vendor's type is Administrator?