Even though Dorry and Brogy are being controlled by Imu, if they are killed or die as a result it needs to be Loki to be the one to do it. Elbaf already thinks of him as a Villain and if two of the most respected Giants were to die, I think he would take the blame so that Hajrudin can be seen as the savior of Elbaf and rule as their king and protector.