Why isn't Post to Facebook persistent with scheduled posts?

If I select "post to Facebook" in Ultimate Facebook and then save a Draft or Schedule a post instead of Publishing the post immediately, it looses the setting.

It would be great to be able to choose to post to Facebook on a scheduled post and feel confident that both the post and the Facebook status update would happen.

Why doesn't this happen? Isn't this just setting a parameter in a database? Why isn't that value carried through saving drafts or scheduling a post?