The only way this can be interpreted as "people manually look at the camera and tabulate the price" is disingenuously. And it's one example that I suspect will be scrubbed from the web, but from the moment this was launched, unless you were living under a rock, the message was "AI powers the store." So please stop with the hairsplitting and revisionist history.
(1) https://aws.amazon.com/blogs/industries/enhancing-the-retail...
E.g. the way I imagine it to be is that this CV system will attempt to identify the item and confidence that it is that item. If the confidence is too low, it will trigger a signal for human feedback, then human will either confirm or reject.