In the American Saddlebred shows that I used to do, at the end of the class, we would bring the horses to the center of the ring, back them up a couple of steps, then have them park out for judging. When I asked the trainer that I was working with why it was so important that they "park-out", he told me that it made it harder for them to take off when mounting. As far as parking out after the ride, he said that it showed that the horse had discipline? Which I still don't understand, but whatever floats their boat.
It's just a different way of setting a horse up. It's the way this set of breeds does it - called "parking out" - nothing wrong or ugly about it, it's just a breed thing. If you're familiar with the breed and what to look for, it's a good conformation picture. Let's not jump on one set of breeds because of how they set their horses up, please.