Another long distance hiker and mountaineer chiming in. I don't agree with your points, but moreover, I don't think this is intended as a hiking aid to be sold

Another long distance hiker and mountaineer chiming in. I don't agree with your points, but moreover, I don't think this is intended as a hiking aid to be sold at REI. Like the article says, it could be beneficial for soldiers with very heavy loads or for rehabilitation / physical therapy. In that respect, I think this is a great, innovative medical device.