While I agree with the op, I think this was put in place because they knew people would forget and now be forced to spend Gil in order to get back. The teleport feature in the game seems like a way to drain the economy of the game in order to prevent people from amassing tens-hundreds of thousands of Gil which would fluctuate the market. Just ask yourself really, how much Gil do you think you have spent on teleporting since you started playing.

Overall, like I said I agree with OP, but this doesn't seek like anything they'll be changing anytime soon, not at least without 50 or more replies to this thread

All the dev replies seem to be on threads where there are 40+ individuals contributing to it, sad to say.