It would be a beneficial implementation, I agree! I am still a bit mixed on the idea of a teleport option. While it would be nice to get to where you need to go faster, we want to encourage world exploration and immersing yourself in the maps that way. But at the same time, teleporting may encourage people to enter other maps they normally wouldn't cause they find it difficult to access. I think if you could teleport to a different map but not be able to teleport within the same map that would be a good happy-medium. ^^
It's something staff have discussed in the past.