When I worked retail, employee theft was the big deal. From pocketing cash to a dock guy bringing up stuff for his buddies during busy times to the Theft Prevention team doing something to all get fired I think the employees did more damage than the shoplifters.

We didn’t have self checkout back then, though.

The article doesn't mention employee theft -- and that's going to happen in the back room anyways, not in aisles, so this system wouldn't even apply.

The article seems to be mainly about theft during self-bagging.