Write anywhere
       
     
Write anywhere
       
     
Write anywhere

It's never going to be a common case that content authors write long-form articles on their phones, however, If an author or editor happens to be reviewing an article AFK and notices a typo or an an incorrect fact, they are going to want to edit that from wherever they are and not have to wait to get back to their laptop.

That's why we designed the Drupal 8 admin UI (shown here with my Ember administrative theme) to be fully responsive.