In many countries individual businesses (like supermarkets) and business parking lots (like the supermarket's lot) are not mapped. This is so you don't run into the "one giant bluish blob" problem where all the landmarks run together.

If you guys over in Russia want to map supermarkets, why not just map the store & the lot as one landmark? For example, in the US, schools are mapped as one single landmark covering the building(s), the surrounding athletic fields, and any attached parking lots.

Yes it's possible, but it's not implemented.