Ryder was indeed updated in response to customer feedback. The photo above is of the older-style base, which is flatter. The new base is thicker, more rounded, and sort of angles down from the neck of the toy. (Photos at our website, if you're interested.)
FWIW, the Ryder was changed January 2012, and Eden Fantasys has likely sold though all their older-base versions. I'd be willing to bet based on the volume of their business and the length of time involved that the photo above is slightly outdated as compared to the actual product they're carrying. This may be a photo of the older base, but what they are shipping are the updated version.