Why is it necessary to use "Draw and Save" for trip waypoints? Why can't the system just use the raw gpx file?
Answer: The raw gpx file you may upload to your trip report is only for reference. The Bivouac waypoints field still needs to be filled in, because that is the field used for all search functions.
Ok, so why can't the raw gpx just be translated automatically?
What would be necessary is to both parse the gpx, and then thin the points so you have only minimal number of points, and the key points are labelled. But the simplest is to use "Draw and Save"