I adore that song and it gave me all kinds of feels through the expansion, but after going back to Ultima Thule in order to unlock flying, I was disappointed it didn't revert back to the original spooky ambiance. The Endwalker song felt out of place now that the 'Epic moment' has passed and talking to the NPCs, still frozen in their state of despair and nihilism as these are but shades/echoes of long-dead stars, feels odd when there's hopeful music blaring in your ears. Though the stars have now been infused with hope, this particular area will forever remain a pit of hopelessness and despair, given that it's nothing more than a memory (and evidenced by the fact that the NPCs are clearly unaffected by the 'Endsong' having been silenced).
It's certainly not a major gripe, just a small disappointment.
