Here it seems like someone has a acquired job lot of pull/grab handles and fitted them to both sides of the door. So pull handles on the pull side and pull handles on the push side. So rather than the typical push plates on the push side (often with the word "Push" etched in for good measure) here you're approaching a door with the familiar grab handles which are crying out to be pulled. Hence the need for the retro fit instruction on how to operate the door... "Push".