This story has is more than a little reminiscent of Air New Zealand's Mount Erebus accident years ago, when a DC10 had a CFIT in the Antarctic, killing all on board, as a direct result of ANZ's staff in the Flight Planning section providing incorrect navigation information for input into the aircraft's nav system.
And amazingly, in SPITE of being aware of the incorrect/inaccurate information being deliberately supplied, Swiss are refusing to correct it!