Just looking at clues within that video I would have to say that it was very set up. If you look at how the dog leash plays across the dog's back and then behind her into her right hand it appear that she went a little ways down the road, turned around and, when prompted, began to jog back past the camera.
Or, the dog stopped briefly to smell something, then caught up. I see it happen all the time.
I thought that too at first, but realized two things. First, when given the option dogs tend not to run on gravel if a paved surface or grass is around. Second the slack nature of the clasp on the holster shows that the tension of the lead was pulled to the dog's left (away from her body currently). Yet, the leash plays out behind her and then over to the dog (on Aluaura's left).
This shows that the dog was under tension to the dog's left and as the dog prefers to stay on the roadway the logical inference is that they walked away from the camera with the dog staying to her right and setting the clasp in the left pointing position only to have her turn around, tugging on the leash to get the dog's attention and setting the clasp with a left bias. This wrapped the leash behind her and the dog simply pivoted and returned, still in the street. Because the dog simply reversed direction with her the clasp never flipped over to the dog's right. If they had been running for any distance Alaura would have corrected the wrapped leash about her waist and/or the clasp would have shifted to the dog's right under tension. Neither of these are evident.
Also, running ahead of someone to film them passing you is a much more complex maneuver that simply having them walk off a bit and then return to the camera.
Also, the size of dog precludes running for any distance.
Also, she is running on the wrong side of the road and is more indicative of someone pulling a vehicle over, jumping out and filming this little bit, without crossing the road to run on the safer (but further away) side.
I do enjoy photo detective work.
It even looks like they are in or near the State Park lands southeast of San Jose.