The fact that I have used a system that does essentially the *exact* same thing in 1990, 7 years prior to Kodak filing for a patent, invalidates the claim Kodak is making.
Yeah, and the Wright brothers flew a plane who's basic design is based on the same aeronautic principals that are still used to this day. I guess Boeing and AirBus should just hang it up and realize that their patents are bunk.
Whether or not it should can be set aside in this instance
No, it can't be set aside because by your standards a patent on a hybrid vehicle would be invalidated by prior art ala Karl Benz since both vehicles use internal combustion at some point and they both take a passenger to a destination on four wheels. Or the ENIAC would make just about any electrical calculating device unpatentable since they all calculate, fundamentally.
It's not the end product of what it does that matters, it's the process and the hardware supporting that process. Without the ability to patent innovations that spur on more efficient ways of coming to a similar end result, R&D in the private sector would come to a halt.