This does not come as a surprise if you've followed prior evidence suggesting that processed stuff contains less nutrition than natural foods(whole grains, grass-fed, organic, etc).
My parents have a property and grow a lot of their own food - and the taste difference just blows me away sometimes.
Supermarkets value what is profitable. You know, the difference between what people will pay for something and what it costs to provide said something.
People pay more for appearance. In store shelf-life reduces costs and post-purchase shelf-life increases buying and reduces angry customers and returns. etc.