The article says "The project will apparently give restaurants and other businesses the option to pay to have their details featured more prominently in search."
It doesn't sound like it will affect screen space of the map view in any way.
And software needs to make money. Their map data is hugely expensive to purchase and produce -- Maps isn't just a little app like Notes, it costs $$$$$ to develop and keep current. Apple isn't a charity. If you're out, who are you going to switch to? Are there OSM apps that are free without ads with the same level of functionality?