Why did Nintendo Korea show Rainbow Road in Mario Kart World on the map, but not in Nintendo Treehouse and Nintendo Direct?

Just asking. Look the wayback machine and see for yourself: https://web.archive.org/web/20250402175449/https://www.nintendo.com/kr/games/switch2/aaaaa/ Edit: I'm not BluePikmin, but I replace him after his ban.

Like almost everything that has happened in this era so far, it was a mistake (for example, US direct having voice delay when it was live and also it just crashing during the four kids stranded game)

It was a mistake. They leaked a new DK character too.(It might Kid Pauline)