But this is the way Yu planned it.
I see this sentiment getting thrown around a bit on the forums lately, mostly as a response to any kind of criticism of how the story was handled.
Without getting into whether the story/game was good or not, this statement is simply false. While Suzuki might have some overarching points for the rest of the narrative it was definitely not planned out to the minute details. Suzuki himself doesn't even claim that. Not to mention how many times the story has changed or things being cut/added during development. 18 years on the back burner definitely changed some things too.
And saying this is how Shenmue 3 is supposed to be makes no sense. The entire area of Niaowu was added. It was never part of the original 11 chapter story, nor were many of the characters introduced i.e. Mr. Muscles. Even new ideas like Baisha were planned and completely cut from the game.
I'm not saying that none of it was planned, because some ideas that were scoped in the 90's definitely made it into the story, but this is not 'how Yu planned it'.