L337: So am I not correct in saying. "the route displayed to the passengers is the actual route taken"?
The track already flown is the actual track.
The dotted line for "projected route to destination" appears to be the great circle projection having nothing to do with the actual flight plan route.
I have tried to stay off this thread as it's more a place for professional pilots rather than us SLF, frequent or otherwise. But this at least is something that I can report observing very frequently.