THE SMART TRICK OF ZABUZA VS KAKASHI THAT NOBODY IS DISCUSSING

Naruto's speech was merely a nudge (like Naruto's headbutt to Gaara) to unearth the inner thoughts Zabuza already experienced for Haku. Masashi Kishimoto gave the right closure for that duo; they died with each other, facet by aspect and were buried side by aspect. This act is somehow similar to "'Shinju", the place fans die jointly for any chance