When you export a selection, I am expecting it the upper left of the selection to be at the origin. That is what I am seeing here when I export a selection to SVG. Are you seeing something else? Can you email us an example at omnigraffle@omnigroup.com so we can take a look?
Thanks for the example and for explaining what you are looking for. It isn’t possible at this time, but I’ll make sure that your request for a simplified SVG export is shared with the team.