Additional suggestions has: "Drawing area and width/height ratio: The drawing should be compact and the ratio between the width and the height of the drawing should be close to 1." This ratio suggestion is in conflict with other recommendations, such as minimising edge length and drawing subsequent processes in one direction.
I agree that we should remove this suggestion. It is a bit arbitrary.
Its not clear to me that this is an excplicit conflict with the other suggestions mentioned. Since these are additional suggestions, my inclination is to leave this in. So the action is to do nothing.