hmm this is not possible gynta. I'm just testing it and seems that export as KML (by some new KML button in google maps), export all points generated on map, not just start and end point! Try to zoom in ...
anyway when you show this route directly in locus by My Maps feature, you'll probably see only start/end point ...
anyway when you show this route directly in locus by My Maps feature, you'll probably see only start/end point ...