It's almost why I wish they'd bring Voidwatch to XIV in a way, while I dislike pulling em from another dimensions (it fits with XI though) it could be a simple spawn system where you progress through ranks for the big boys (high level ones) that drop the gear and stuff you're after.

However since the maps are becoming smaller/segmented like how it was in XI (based on concept/renderings shown), it's more likely something like this will be realized, since in the current size of maps, it's almost pointless to dump an NM in some obscure location you'll almost never go to simply because it's barren of anything really.

Like in FFXI some areas were designed just to house NMs being in a nice spot, like in I believe it was Bhaflau Thickets that had a tower that only served as a battleground for a Mamool Ja ZNM fight, same with Sarameya fight on the lone island and so on. That would be nice to see if they do it that way with open-world Spawns, it does give a reason to explore more because you never know what you'll see as well as seeing other groups attempt to take something down since it just makes the world much more livelier.