Kahlil doesn't attempt to stab Lucifer, though the angel-demon's speed is still surprising. He's confident in his own abilities and speed of movement, but that is compared to other ushiri'im like Fikiri. He doesn't mean to try to test himself against Lucifer.

There's no arguing, either.

"Less work for the city guard." As he kicks back another corpse he begins backing away, then running. There's no one living in this building, and he's not willing to die protecting stone and rotten wood.

They can alert the guards to this place, at least.