That's true but if there is no hard divider between the spaces anything that is loose will instantly become a projectile in case of an accident.
It looks like the wall with the shower creates a barrier between the cabin and camper portion. So stuff flying around the camper wouldn't be able to get to the cabin.
Yes, in that case it is fine. But I've seen other campers as well where stuff was set up for real trouble. Including some factory campers.