Have we gone too far?

[Avenger]

There's fast travel in Bravely Default too...

I think that's the point - IIRC in spite of things like teleport stones and ships (and airships - it's Final Fantasy!) after you unlock them, you still had to traverse the overworld to get to most of the dungeons (though you could turn off random encounters if you wanted, removing that bit of challenge or irritation...)