You already do have to reach the nodes before you can teleport to them. It's the camps that you can be taken to if you've never been and those are all easy to get to.

Anyway it seems people want chocobos and airships but they don't want to lose anima. As long as anima exists I will never use a chocobo or airship because I have never ran out of anima. Even before I had two mules to teleport me around my anima had never dropped below 50.