They are just wallpapers. And crap ones at that. If you want them then Google them. No big deal.WTF?! Device exclusive wallpapers? What sort of s**t show is this? Apple, are you even for real right now? Get a bloody grip and stop screwing people over.
They're just wallpapers, but it's more the fact it represents Apple's whole attitude towards people who don't choose to upgrade to the newest devices. They make old devices run like crap and withhold simple features.