I think Jamie Oliver had good intentions but didn't realise the enormity of the task and expected his celeb status to get him further than it did. He did at least try to offer healthier alternatives to the food they already enjoyed rather than changing the meals completely, offered a range of different meals daily, and spoke with the children, teachers and kitchen staff to try and work out the issues that came up
I think a lot did actually come from that, a lot of places have added a daily option of something like baked potato and variety of toppings / salad bar / pasta bar if they have the room and these do provide healthier meals and are often the go-to when people aren't fussed on the options that day actually giving them an extra alternative or the one they would have chosen has sold out. I think it made schools look more at what the children were eating and the effect it may have on their learning
He certainly didn't do what he set out to do, and I think he was extremely naive, but his intentions were good and he did put the work in and he did try to make it work when obstacles appeared. I think there has been positive changes in schools since then, some more than others but I think all have at least one improvement whether it's no fizzy drinks, chips once a week, no dessert other than fruit/yoghurt, healthy food lessons, healthier versions of children's favourites, healthy alternative meals like salad bar etc. It didn't get close to where he wanted, but he did make a difference for the better
I can't see this going any further, it sounds like a throw away comment anyway, but also because it's just not practical and I don't think that Prue will be putting the work in to try and make it happen