Agreed. You can't explore the same thing over and over If you've already discovered it.
I like anima because it allows me to journey out and do others things without me having to run back every 15 minutes before a behest starts. Traveling back and forth through the same areas isn't fun to me and an added timesink hindering those with little of it(which is why I collected all the OP in XI). Anima also doesn't replenish that fast for anyone actively playing and not just on leve reset. Anima is something any active player has to learn to manage. Also there is no reason to remove it since it is basically an OP warp v2.0. Only difference is your nation doesn't matter, you can use it anywhere, and to balance it it's more limited in use.