Yes, it is. And in a grocery store, how is a product handled when it comes in on a shipment and doesn't match the previous shipments and/or bills of lading? By a person, in every single grocery store everywhere on the planet.

Although, in a grocery store, you're less likely to see a product change from a bicycle to a scooter. You're more likely to see the cocoa content in your chocolate bar drop, and the oil change to a cheaper and less flavourful type.

I guess the comparison still works... should we have purchasers comparing products before setting them out? Under what conditions? What conditions trigger a review? In my experience, the stores just keep putting changed products out like nothing has happened, even if we notice over time that things just don't taste the same sometimes.

Turns out that... yes... it gets pretty complicated pretty fast, but many grocery stores also seem to just be ignoring this issue.