I definitely see what you are saying, even if they could at least, let us craft a airship and this would let us travel to other contents once those are unlocked, or islands. Maybe make it so that would be the only way to visit the new content first.
(doesn't matter if it is a instants where to see yourself flying over water or land, or fast travel, that isn't what my focus is on) Just something to make crafting not so boring, a way to give the player like they are needed to access different parts of the game or a way to change the world.