Is this the "electronic ink pricetags bad" thing that the UFCW keeps peddling because "it takes clerk work away"?

I still don't understand how they think we're going to change UPC pricing live per-person in the physical retail environment. Does the price tag change depending who looks at it? What if two people look at it at the same time? They obviously both can't be surveillance priced at that moment. The UFCW is mad they don't understand they can re-skill the worker that was trained to stick little paper labels up that they can now maintain pricetag batteries and hardware instead.