Simplest way to let writers edit Views headers/titles without Views UI access?
You can use the  Views UI: Edit Basic Settings module:


  "Views UI: Edit Basic Settings" places edit tabs on Views pages, similar to node pages, and allows users with the correct permission to modify their header, footer, title, empty text, or number of items to display. This module also provides a separate interface that displays a list of views. All Views are defined by you, so you can exclude certain Views.