The common idea of Morfy is a small and super fast core that can be extended by plugins. As Gulp has for e.g. thats why its better and faster then Grunt.
You can MANAGE YOUR CONTENT ANY WAY YOU WANT. You may even store it on GitHub as I do for Official Morfy Website or you may use Morfy Admin Panel - https://github.com/nakome/morfy-admin-panel or you can create your own application based on Morfy to manage your content.
composer create-project morfy-cms/morfy