I watched this last night and was surprised by how much I enjoyed it. The biggest head scratcher to me was the steel wheeled things left behind on that atol. They kept arguing that they were used to transport the plane from one end of the atol to the other end. These were small diameter, thin wheels that are intended for steel tracks. It doesn't seem likely that they used tracks because if they had left the wheels behind, then they would have left the tracks behind too. How would these wheels have performed over sand and coral? How would they keep each pair of these wheels turned in the same direction since they weren't on tracks. That all seemed awfully fishy to me. The logic of how they came to be on that island seemed to make sense. They also had a lot of simultaneous circumstantial evidence all pointing in one direction. Any one tidbit of info wouldn't mean much, but together, it did build a case.
As far as the photo goes, it seems that all they really built is that each of the people resembled the people in question. Their proportions were correct and the overlays matched. Having two that simultaneously matched made it more likely that it was correct, but they still didn't prove it. Once they moved on, they continuously referred to the photo as if they were definitely the people in the photo. They're hoping the viewers forget that it might be the two people in the photo.
As far as the photo goes, it seems that all they really built is that each of the people resembled the people in question. Their proportions were correct and the overlays matched. Having two that simultaneously matched made it more likely that it was correct, but they still didn't prove it. Once they moved on, they continuously referred to the photo as if they were definitely the people in the photo. They're hoping the viewers forget that it might be the two people in the photo.