I mean, it seemed like the article wanted to have some nefarious take, but offering smaller quantities of items so people can afford them, even if the per-unit cost is higher, doesn't seem like some unexpected malicious intent. I mean, I certainly expect to pay more per gram if I'm buying a travel size of toothpaste vs. the 4 megatube family pack at Costco.
And the fact that the stores are oriented so the popular items are in the back - just like literally every grocery store in the country - is also unsurprising.