Hinata and Kageyama have parallel journeys of personal growth throughout Haikyuu!! but they both failed on their individual quests during the Nationals arc, which led to their defeat by Kamomedai.
I’ll be the first to say that Fjord is guilty of many things, many failures. But there is at least on instance I can point to where it’s Caduceus — Fjord’s self-appointed spiritual guide — who fails him in a pretty big way.
When Sawamura Daichi, Sugawara Koushi, and Azumane Asahi inherited the Karasuno Boys’ Volleyball club, it had reached it’s lowest point.
Had he been faced with any other team, Hinata might have given up on volleyball after that match. He might have even been satisfied with his attempt.
It’s about legacy. It’s about a thread, a path, a story. Sometimes the path is not what we expect, there are sharp terms, obstacles we couldn’t have foreseen. Sometimes we have to pass the torch on to someone else, and watch the light from a distance. But none of that erases the part we played, and the steps we walked.
Hinata and Oikawa met in Brazil because they were on the same path. They had made the same choices and taken the same risks.
Oikawa is pretty confident about his abilities to overcome other players through strategy, game sense, and experience, but there’s a single obstacle that seems insurmountable to him, no matter how hard he tries.
In Haikyuu!!, Oikawa Tooru is the ultimate opponent, the Grand King, and the player who suffers, risks, and sacrifices the most in order to make it onto the Olympic stage.
To justify substituting Hinata or Hoshiumi in for a taller player, they are required be expert receivers, blockers, and setters in addition to jumping even higher than the taller players.
Victory comes at a cost, and sometimes that means making sacrifices, and compromises, and working your ass off for years before breaking through, before “making it”.