If the oven were in a wall cabinet it would occupy just as much space, but most builtin ovens are not in the middle of a counter run. If this unit were installed at the end of a counter in a full depth cabinet like most wall ovens are, often with the cooktop next to them, most people would not be thinking of how much counter space is lost. Unless a wall oven is on a blank wall, it can't help but take up counter space. This oven is probably installed with a shallow wall cabinet above it to facilitate the vent connection from the oven to the hood to provide the ventilation necessary for the closed door broiling feature they offer. It might be harder to modify a traditional cabinet used for a builtin oven in this situation.
On the other hand, depending on how much counter space is on the other side of the oven, like maybe 4 feet or more, it could be put to excellent use as a baking center with the materials in cabinets above and below and the mixer on the counter.