Sorry, but why should sellers be saying what they do not offer?  I select what I want to offer, and Express is not it.  Unless it would be express platinum.  While I understand your frustration with getting your parcels slowly, I cannot see how express would make so much difference; if you live in remote area, isn't it also out of the express zone?  I believe it still cuts bit of time off, but would not have thought it would be weeks.