>>54775201>It also ties into the earlier plot point that some people (Wally) need cleaner air to thrive. Meanwhile, others thrive in this even harsher environment. This ties back into the Aqua/Magma conflict indirectly, reinforcing the theme of co-existenceHoenn's kinda like that, right? Everything has to do with everything else. The geography, the legendaries, the evil teams, abilities, weather, the characters... Not everything is like that, but it's still really cohesive compared to Kalos or Unova.