Hmm. I feel like there's a spiritual connection between your spreadsheet guys and the apocryphal product expert at Campbell's Soups or wherever that tried to focus-test "the perfect soup" that would optimize sales. In the story, they realized that there's no one "perfect soup" and they had to create different varieties.

Likewise, there's no such thing as "the best product" at a supermarket. Everyone has their own spread of products and if you cancel low-performing product lines, sometimes it has unexpected effects. (Anecdatum: We used to exclusively do grocery shopping at Woolworths until they stopped selling the cans of chilli beans that we use for nachos. Now we do maybe 1/4 of our grocery shopping at Coles instead, costing Woolworths thousands of dollars a year in lost sales, just because we needed some chilli beans and might as well get the rest of our groceries while we're there.)