I love that people who haven't played the game keep posting two maps from the beginning of the game, and then mentioning that the game is like that for 20 hours.
Even though,
1.) They have no idea what the game looks like after the first two dungeons (assuming those are the first two, and not cherrypicked).
2.) There are impressions of the game on English-speaking forums, written by people who are in the middle of playing the game, which can be easily read by anyone with an internet browser, that suggest the game opens up in interesting ways long before the 20 hour mark.
3.) Anyone who has seen gameplay of the demo released almost a year ago has already seen one of the long areas shown in the maps.
4.) You can't tell what a game plays like from looking at the minimaps.
Final Fantasy really brings out the crazy.