Yes they don't because its not feasible _yet_. If your residence/office is within 30 mins from the stations at points of origin/exit, then with this, it'll be about 1.5 hours end-to-end (I'm sure auxiliary services would spring up to support this like shuttle buses etc). I know people who change buses, trains and do some walking, chalking a total of that much right now everyday while working and staying in the same city.