Fey Wanderer was the single most pleasant surprise in terms of unexpected class update as its not one of the more iconic Ranger subclasses, unlike say Gloomstalker or Hunter, but it was my FAVOURITE Ranger subclass so I was thrilled. This and Oath of Glory helped make up for no Divine Soul sorcerer, well that and I came up with a cool concept for a Clockwork Soul that is tied to Hell or Archron instead of Mechanus, basically the character is a son of a mother who made a deal with a fiend, and her son was born as a living contract, he's a living infernal contract for his Warlock mom. When he summons constructs they look like Infernal Warmachines.
Anyways now that we know know the logic of how the subclasses were picked, opposites in some way, it makes sense because Fey Wanderer is the opposite of the Gloomstalker and Oath of Glory (Chaos) is the opposite of Oath of Devotion (Order).