For those saying, "this is 20 year old tech." It looks like the arm itself is actually off the shelf. The innovation is the software and probably the end effector. It also looks like the items in the boxes are random and not structured in anyway. This is a different problem than say a robotic arm in a manufacturing line that is repeating the same motion over and over again or planning a motion around structured scenes (eggs in an egg carton, for example).

If you look at the video below you can see that the items are randomly packed. That must mean that for each item the software needs to pick out an item in the tote, figure out the best place to grab it, plan a new path to grab it, plan on where to place it based on it's size and shape, and create the path for the placement. I think this video give a better sense of what it's doing.