He killed literally no one. You glazers developed the wrong behavior to consider one attack landed = out of comission god knows why? Sanji and Zoro showed how fine they were right after. Imu just pushed them out of his way. No different from Luffy vs Kaido act 1.
What happen with loki , luffy and gaban is not the same as Zoro and Sanji where imu just hit them aside.
It not the same as kaido round one either cause Kaido was not trying kill luffy after round one .
This not glazing one attack = out of commission Loki could not move to avoid the attack jinbei block.
He would died cause he unable to move from 2 stab wounds .
Luffy was pin to tree with 2 swords one that drain life from him unable to move and about to get his body chop in half with axe.
Also this is OP with character Oda has Imu show off on none of them not going to died .