Navigation on an electronic device is not as automatic as flipping pages. Every element on the screen that has no direct semantic or obvious structural character can be misunderstood as a navigational control. Once the user learns it’s mere candy, it will effectively be blanked out by the user’s eye. Once that happens, important navigational elements are blanked out as well and the whole app becomes one baroque carpet (who would have thought that the yellow marked words are in app links?).