I'm not sure if this is a fair comparison.
FF14 has easy mounts that you can call from anywhere and easy teleport access open to all players. Ferries/ships are also instant if you skip cutscenes.
There is also the new aethernet system that can zip you around town really quick.
In FF11 transportation is extremely limited, where chocobos must come from select towns, teleport is limited by class (or will cost you an arm and a leg to get someone else to teleport for you), and you actually have to play and ride out the full duration of ferry rides. No aethernet system either. In FF11 you can actually get lost running around town.
I'm sure FF14 feels small because you can get around places really fast. Another issue is that we're stuck playing on just one continent called Eorzea. The world (may be referred to as Hydaelyn?) actually contains many other places that the storyline talks about that we never see. Some examples are Garlemald (home of Garlean Empire), Doma (spoilers...?), Radz-at-Han (the place where Jalzahn comes from), and Ala Mhigo (more spoilers). So I think the "world" is actually large enough, we're just not able to see and access those other places.
