This article has a lot of good points, but the UX is in my opinion terrible: UI elements are moving across the screen without the user of that screen doing any

This article has a lot of good points, but the UX is in my opinion terrible: UI elements are moving across the screen without the user of that screen doing any action. We've all experienced this: you want to click a button (or select an input field, ...), but right before you do it moves away. Maybe something finally loaded which pushed the content down. Maybe some content was synced in (as is the case in the UX examples of this article). The solution is, afaik, well known: add a UI element (that obviously does not move other elements) that informs the user that "new information is available". For instance GMail's yellow drawer informing users (a) new message(s) is available in the thread.