And he did not use it, at the cost of his very life. Rama restrains Lakshmana from using the Brahmastra against Indrajit. It puts almost all chief characters of the epic under test. Hanuman did not inform Rama of his own successes and the way he has created terror in the minds of the Rakshasas. A report should start with the result first.
Elaboration comes later.
The greatest of maladies is not wrongdoing alone. Don t be afraid. Vali is dead and his tail went with him. A leader should know when to hit and when to lie low. He should not be guided by impulse.