Looked like a bit of a fix to me? Knew the series was likely coming to an end and wanted to add some excitement? Both these girls were easily good enough to do the travelator, especially Andreya was home and dry the first time.
Once the legs go mate you cant feel them,, its like every ounce of strength is just gone and the arms are just flailing at that point. The next day is worse, the legs are hurting, you can feel them the next day.