Products often change in design from samples to the main product. The samples are often used for photography. I had and sold the Bubble that Kook used for their catalogue photos, these are the only photos available for retailers to put on websites too. The stickers are quite different to the finished product. The Gn1000 duffle from Gray Nics also changed drastically from samples I saw in July time, the catalogue photos were of this original design (again same images for websites) and the product we are selling is different.
As stated, PDC take their own photos of the products they get, so they provide accuracy in this sense. It could be that the design for this pad was altered after the catalogue/website photos were taken.