that was a perfect dance performance. It was like a mini-theatrical play.
The crowd was taken on an emotional roller-coaster, although I am surprised Naru didn't get art of dance right away because hes not a calculating person, this way he accidentally created the perfect narrative that displays itself in dance.
Perhaps I am missing something from the LN/WN, perhaps he planned a hustle from the start, that didn't come through in the manga.