The interesting thing about this becoming a legal matter, is what are the implications? The question being pursued essentially comes down to whether a vendor can penalize a purchaser for not availing themselves of the service they have paid for. The seat on the second flight has been paid for. Unless the airline can show some sort of loss in not having a bum on that seat, or perhaps a cost in the pax walking out the door of the intermediate airport, the responsibility appears to be theirs, as they offered the cheaper flight.
If they push the legal question, and lose, that seems to open the door for hidden city maneuvers on flights other than the last of the trip. Seems to me that the precedent will have been set. You book your multi-city package and pick and choose which flights you avail yourself of. You've paid for the seat, either you fly, or your shadow stands in.
If they push the legal question, and lose, that seems to open the door for hidden city maneuvers on flights other than the last of the trip. Seems to me that the precedent will have been set. You book your multi-city package and pick and choose which flights you avail yourself of. You've paid for the seat, either you fly, or your shadow stands in.