I can't see a single good reason why one can't tell an interesting story with the exact same premesses of POE. And those premises are made possiible by the setting.
Let's start with "Bîaŵac."
Candidly, I bounced off the game so quickly that my impression of it is very superficial, but the entire setting seems constructed in a way that makes fantasy a chore, rather than a pleasure.
Early in my legal career, one of my jobs was sifting through petitions asking the court I worked for to review the cases. One common request was that the court overrule a prior decision (called
Almendarez-Torres). This request was made hundreds of times during the year I worked there, and always rejected. So if you got an "overrule
Almendarez-Torres" petition, you could just note "oft-denied" and cite to recently similar petitions that were denied. But once, I got this incredibly dense, hard-to-follow petition that went on for page after page explaining how, if you followed this thread of decision and that thread of decision, they indicated that there was a flaw in how criminal sentencings were being handled, etc., etc. About three hours in, I realized, "This is just asking the court to overrule
Almendarez-Torres, without mentioning the case by name."
POE, to me, was basically that crazy prisoner's petition expanded from 5,000 words to 1,000,000 words. Every encounter I've had with the setting (my brief stint playing it, my efforts to read about it) suggest a grandiose effort to obscure fantasy tropes, such that if you really, really work hard to parse the stupid Welsh and sift through the longwinded backstory, you realize it's just about elves, gnomes, etc. doing exactly the same stuff they do in every other fantasy setting. It's like the opposite of, say, Darksun, which uses the player's familiarity with fantasy tropes to unsettle his expectations, or Warhammer, which uses the cliches to jumpstart a baroque setting -- allowing it to use more of the player's brainspace on obscure lore because the basic lore is hardcoded into every nerd's brain by now. Petition denied.