The iPad is basically well protected, but the manufacturer has not really thought along. At the bottom of the iPad is held only by a flap which is simply folded. If you set the iPad on, so it presses this tab by the weight down and shifting or falling out even in the worst case, because the tab is secured by nothing (no magnet or similar).
I have two small Velcro dots attached here (see photo) and then the pad will not budge and slipped or no longer shifts. Not really understand why the manufacturer is not invested from the start these few cents more.