What is the highest point between the takeoff location and the flight plan starting point? Lets just say it is 200 meters. If the aircraft had to go to 220 meters to be able to clear that it would be breaking maximum altitude rules that are in place in many places. In the US, you cannot fly over 120 meters. So immediately this flight is breaking that rule before it even goes anywhere. If we maintain the terrain hugging throughout the flight can be executed legally.