Yes, the idea of the Ford patent is to make it easier to move stuff around the trunk of a three-row SUV, from the load lip to the back of the cargo area, and perhaps to fetch those same things from beyond the reach of a mere non-stretchy mortal. Not everyone of us is Mister Fantastic, so we have to strain for the farthest cargo. But pressing a button and having a conveyor belt bring those things within your grasp — isn't that the civilized way? Part of the idea is that the belts would utilize the same motors that power-fold the third row, so while the solution makes things a little more complicated, it would still make a bit of sense.
But as CNET reminds us, car manufacturers patent flight-of-fancy stuff all the time, and a patent application doesn't actually mean you'll be seeing conveyor belts in your 2025 Explorer. Still, here's hoping. It would make for a great advertisement: "Ford: Our conveyor belt assembly line was one of the things that made the Model T such a success. Now, you can have one of those inside a Ford ..."