better than new version – Washington Post Review

Why after I read an article do I have to press the done button or swipe down to go back to article list? The swipe down to go back is not intuitive (ie developer had to tell me the functionality was there) and I don't believe it follows apple standard interface guidelines. Can you add the swipe from left screen edge to go back like all other apps?
Review by Fios1715 on Washington Post.