My guess is Mapbox would worry more about competitors in the routing and Addressing space than The biggest danger with Open tiles is a basemap is the gateway t

My guess is Mapbox would worry more about competitors in the routing and Addressing space than The biggest danger with Open tiles is a basemap is the gateway to other data services with higher costs and an easier path to a defendable technical moat. Swapping a basemap can literally be a 10 minute job