Exactly. As much as I like the "open world" feel in some ways, its pretty lame that you can walk very far without finding an aggressive mob. And if you do, you can usually avoid pretty easily. Its essentially like crossing the street to avoid a shady guy walking towards you. Even if you aggro, you are usually pretty safe due to the leashing. Again, no motivation to learn mob aggression types/ranges or detection methods.
Or you have the other extreme end of the spectrum like in Nanawa, with the leve mobs placed right on top of like 2 mites and 4 djiggas. At early ranks this makes completing the leve near impossible, or at the least very inconvenient/annoying at higher ranks/party size. Or DoL leve targets that are placed right on top of NM or high level mob spawn points. Some higher rank parties have trouble with these mobs as it is, and a Miner or Botanist is supposed to survive 5 or 6 gathering attempts there?
Where is the middle ground? On the way to Qufim you had to be patient and pick your path. Or even <Call For Help> to work as a team to clear the path. In the Citadel or the Jungle, again you had to pick your path carefully and be patient. You had to learn the pockets of safety and use the environment to your advantage. You needed to be quick getting Sneak/Invis up, or if you ran out of oils, you were hosed.
Right now there is no learning curve for this. Eight months into the game, and there are still people running into a room full of leve/Behest mobs and pulling them all on a regular basis. In some cases, this causes a full wipe. But at the very least, this usually screws the SP pretty royal. Of course, this ties into other issues like targeting, claiming, battle, and class uniqueness. But this still clearly needs to be addressed.