Right now a terminal even at 48.9 latitude angles itself somewhat north, because the greatest simultaneous density of satellites at any moment in time is around 52.5 to 53 degrees north. If you mount it flat and don't allow it to move, who knows what starlink will change in the future architecture. They included the servo motor geared pan and tilt mechanism for a reason. Maybe later it will reorient itself differently as network density and satellite population changes. I'm not saying they won't ever release a flat non motorized cpe, but that is very much not the configuration now.