The term “reprisal” suggests that the brotherhood is retaliating against the Coptic Christians for something they did. That’s clearly not the case.
Muslim Brotherhood attack, murder, rape Christians. Then they are overthrown by the military. So in "reprisal" they attack, murder, rape Christians.
Its safer than attacking the military. And the press can always be counted on to blame the victims for the supposed fact that they are happy that the people who attack, murder, and rape them are no longer in power, thus somehow justifying more attacks, murder, and rape.
They somehow don't get that this is what Muslim Brotherhood does. In power, out of power, sun up and sun down. Attack murder and rape anyone who is unable to defend themselves.