is jujutsu kaisen episode 44 filler?

Yuji's mind breaks. Nanami, already fatally burned by Jogo's flames, encounters Mahito.

With his last breath, Nanami tells Yuji: 'You've got it from here.' Mahito transfigures Nanami's body in front of Yuji. The boy who promised his grandfather he'd die surrounded by people watches his mentor die ugly and alone.

Then Todo arrives — slamming into the scene with a clap and a speech about fighting spirit that pulls Yuji back from the edge.