People are Too lazy for Dynamic events
With regards to teaching people its the same if you try to teach a dog. You have to link two events together close to 100% of the time so they understand the association and then you can reduce this percentage later on gradually. You need to be consistent in teaching them that talking to npcs(not just ones with marks on them) will allow you to trigger events.
B.F. Skinner got a lot of hate for his “behaviourism” ideas and particularly for comparing people to rats running mazes and pigeons pecking bars to get food. However, anyone observing how a lot of people play MMOs will know that he wasn’t far off the mark.
The game already flags upcoming events by people running up to you, orange markers etc. and not sure what more they can do without it getting ridiculous; and perhaps selfishly I’m not too disappointed that those out of the way places on the maps aren’t infested by farmers.
One neat event I came across involved kneeling at a statue, causing a spirit to appear, talking to it, and then following instructions to summon a tough enemy. It was really cool to make an event happen by exploring and poking around.
If they widened the range that de’s show up on your map you would have less de camping, and more people running around. Although it would probably turn into a zerg that goes from one end of the map to the other from de to de.