Think that this is more of a move an advertising move rather than something that will cost a lot of people their jobs, but symbolically I saw this move as a display of the process of Automation that is going on for a while now. A lot of people are losing their jobs, due to new technology being deployed. Workers feel that this process in on the way every day in warehouses, distribution centers, transportation, and of course in stores. Think that we need to prepare for the radical changes that this company will go through as more new technology is presented.
https://www.foxbusiness.com/technology/walmart-to-use-robot-janitors-to-clean-stores