Here's the thing about it:

You don't get exp/obs for doing challenging PVE tasks that are intuitive (IE, dragon slaying).

You get them for looking at things that may or may not be meaningful.

So since you don't know ahead of time what types of things you'll get rewarded for you kinda have to spend time looking at EVERYTHING and identifying what you get paid the most for when you talk to your guildmaster.

After that, it clearly makes sense to script the tedious ones that give the most reward.

To give you a concrete example, Arial City is pretty huge and time consuming to explore and gives you almost nothing in terms of obs/exploration XP. However, if I have invisibility, Mansion of Twilight is an EASY 1400xp or so. Because of that, Mansion of Twilight makes sense to just script and repeat on every character rather than trying (and often failing) to get good XP off of places you haven't been to before.

I think the way to do this that makes more sense instead of hiding all the details is to just make it consistent and challenging. Something too challenging to script (like defeat X mob and everyone involved in the kill must earn > 100 XP off it) and something that's pretty "guessable" - like Mob must be a named mob in an area explore or whatever or drop a highly limited item.

Then it's not bottable, not boring and not obscure.

This is btw the exact same thing as the wand system. I'm going to kill every mage-like NPC I can think of when there's only like 40 spots? But wait, the area has to be empty before I get there? Also, I have to be a non-ghost to spawn the spot? I mean the more obscure you make it the more people *WILL* cheat (Imms included, based on previous experience). Other games are fairly transparent - you need to do X, Y and Z and you will get paid A, B and C - but they make those items sufficiently challenging to justify the rewards. So I don't really buy the whole "We need to make this *MORE* obscure" - no, you just need to not have it so that there's easymode things where you get massive payout based on knowing an obscure keyword somewhere in an area that otherwise doesn't really matter.