This is what I believe an rss/atom feed should be, a complete article or text with pictures.
Not this, basically just a link to a URL where the article is located. The whole point of RSS/atom is to aggregate news feeds in one, complete, and convient place, not to mention said feeds can be read offline. You can’t read an article from a URL offline.
TT RSS has a readify plugin that basically opens the URL and scraps the necessary information similar to reader mode in modern web browsers.
Hopefully that helps