how else would you evolve into sylveon without it? max out beauty with poke blocks?
oh snap we can actually do that again
It's actually somewhat of a tradition for the remakes to disallow getting the most recent Eeveelution(s). FR/LG didn't have day/night cycles, so you couldn't get Espeon and Umbreon. And HG/SS didn't have the Moss or Icy Rock for Leafeon and Glaceon. So I wouldn't be surprised at all if you couldn't get Sylveon in OR/AS, especially since Eevee isn't even native to the region. But yeah, they could have it involve Pokeblocks if they did want to implement it.
If you actively hate Justin Bieber... then you don't know what "intended audience" means. Hate Twilight instead, it's far worse.