The thing is, org-mode is quite big. No new project will have implemented all of the features. For myself, I've never used narrow to subtree, but I was struck

The thing is, org-mode is quite big. No new project will have implemented all of the features. For myself, I've never used narrow to subtree, but I was struck by the apparent lack of scheduling C-s, agenda view C-a a, tables (org-mode's tables are just fantastic) and source blocks. Maybe they'll get to some of these later. For now, just having a hierarchy of headings that you can move up-and-down and in-and-out easily seems pretty useful.