Ouch, an almost perfect concept, a supermarket that does without staff, not necessarily because you have to rationalize away, but precisely because there is a labor shortage in many companies.
And yet the autonomous supermarket failed not because of the technology itself, but because of the poor user experience. At least that's how I interpret it, because there are people who want to use this service, but the sticking point is not the technology, but the lack of integration of country-specific payment options. At the moment, you can only pay by credit card, and many people don't have a credit card. Who would go to a supermarket if they had to install an app and the app required credit card data, but of course they didn't have one, so they would usually cancel the procedure and delete the app?
Well, you can see that it's not easy to do everything right the first time, but you learn from your mistakes and will do it better that way. I don't think the idea is dead, they are learning from experience and will offer more payment options. Then the autonomous supermarket will become a reality.