I don't know what's going on with this cleaning robot, but I work with many large retailers and they're ALL looking to automate as much as they can.
For example, in the Walmarts with sizable backrooms, you've got robots flying all over the place, moving pallets, unloading tractor trailers, etc... It's the way of the future. It's not just an Amazon thing.
For as much talk on here about the difficulty of hiring cashiers, restaurant staff, etc... It's even harder to hire good warehouse labor.