There's a private driveway that leads from the cul-de-sac of Southview Sourt between 620 and 615 Southview Court that provides access to 624 and 619.  Without this private drive in your map, routing software becomes convinced that to get to 619 Southview Ct you need to take Miramar Terrace, which seems unintuitive given the address, but is actually wrong as well, since there's a fence with no gate (doesn't appear that property boundaries are rendered in the standard view).   The private drive at the end of Miramar is actually behind the owner's gate and only leads to 784 Miramar.  I wouldn't necessarily suggest you copy OSM's competitors, but most of them have this right except perhaps for HERE Maps.