It was doomed that Bhurisravas would be slain by the heroic Satyaki. We need not judge of its propriety or otherwise. Satyaki has been made the instrument of Bhurisrava's death by the Creator himself.
हन्तव्यश्चैव वीरेण नात्र कार्या विचारणा। विहितो ह्यस्य धात्रैव मृत्युः सात्यकिराहवे॥