Our example mentioned three names: Sufyan, Malik and Yahya ibn Sa'id.
But it showed parts of two chains:
• Sufyan transmitting from Yahya ibn Sa'id.
• Malik transmitting from Yahya ibn Sa'id.
Three names do not make three ṭuruq.
Narrator count concerns people; the count of ṭuruq concerns distinct chains of the Hadith.