3D Touch facilitates this behavior as quickly previewing tweets and links is easier than ever. If I want to see how many faves, retweets, or replies a tweet has received I no longer have to swipe on it and then swipe back – I can just press, peek, and let go to return to my timeline. Tweets are previewed in a smaller card with the same design of a standalone detail view (which is what you get if you "pop" and choose to fully expand a tweet, entering a nested view).
Leave it up to one of the best apps on iOS to implmenet 3D Touch in the way that it's suppose to be. Way to go Tapbots team! If you haven't already, buy the latest version and best twitter client now, Tweetbot 4 only for iOS.