This tricky bit of advertising has come up before. People who like to do parallax maps like to see the advertisements showing the pack at its fullest potential, that means including parallax maps with minor edits and lighting effects and such. However, people who prefer tile mapping prefer to only see what is possible in editor. Since the sets are being sold to both groups, this puts the resource creators in a bit of a tight spot, where no matter what they do, someone is going to be unhappy. Celianna prefers to make parallax maps for her own games, so all of her advertising images are likely to be parallaxed maps.
On the plus side, it really does seem to be an easy edit. My guess is she copied over the planks and then painted a new rope connection with a 1 pixel wide brush. I could do it in less than 5 minutes. If you ask in resource requests for someone who also owns this set to recreate this, you should be able to find someone who can do it. Or maybe Celianna could add it into the set if you ask her nicely.