Earlier quoted context omitted.
I don't find it hard to believe that a few stores ran out of bananas or whatever for a day. That's all it would take for a customer to snap a picture. The picture of a meat department cooler with empty slide racks was obviously in the middle of a reset - notice the lack of price tags on all the racks because they were just installed.
Why are they resetting a section during shopping hours? Even 30 years ago when I was a student worker in a food store that sort of task only happened after 22:00 when the last customers had left.
A lot of grocery stores have non-employees stocking shelves now, usually during the day. These are reps from the vendors, like potato chips or specialty foods that rent shelf space in the store are and responsible for maintaining them.