While the whole "bend your phone in half" thing was overblown, it definitely is a major issue. The whole class of touch disease issues (where the screen has grey bars flickering and touch stops working) were caused by the same underlying problem -- the phones are less rigid and small flexing (such as in your pocket) causes the Touch IC chip to become unseated. An incredibly large number of iPhones have succumbed to this issue, and Apple had a "repair program" for it[1] (which is their terminology to get around calling it a "recall" because their product was faulty) -- and as usual their description of the problem is incredibly skewed (you don't need to drop your phone to trigger it and it affected a very large number of devices because it was a design flaw of the phone).

[1]: https://support.apple.com/iphone6plus-multitouch