I'm not so sure about that, but I don't know for definite. I don't shop online but the prices online are usually representative of what you pay instore. I know Morrisons doesn't offer loose products online, so perhaps he might like to take photos of labels in-store. I'd love to find out what these shops are that are as I have been actively looking in the past week, and I have not found a loose selection of fruit & veg that is cheaper than the pre-packaged alternative in the same shop (per kg), and I know that for a fact, the shops I've been in charge more for loose. I'm excluding markets which are usually much cheaper!
If you are talking about the misting machines, it's a bit disingenuous to claim this was a plastic free trial that flopped. These were rolled out at over 300 branches and were placed right by the entrance at the header to the fruit & veg section. This is the area where they, used to before and have done after the machines, put their headline fruit and vegetable offers to entice customers to buy. Instead, they put there a selection of mostly higher-end products, such as bunches of icicle radish, topped bunched carrots, chicory, kale and fancy salads. Many of these products aren't exactly what the ordinary person who goes to their shops would buy, and they took up prime real estate right by the entrance, so it isn't surprising it failed, but this was not really a plastic free trial, it was an attempt to make the shop more high-end. There were also "normal" things here too like unpacked spring onions and asparagus, as well as herbs, which they still sell now, but are refrigerated normally and placed in a more appropriate area of the fruit & veg section.