You’re conveniently forgetting the role of the prosecutor here. The no bill grand jury decision was a result of being guided by a prosecutor who didn’t really want a grand jury indictment in the first place. By introducing so much exculpatory evidence at a grand jury proceeding, he turned the process upside down. That would typically be the job of the defense attorney at trail. Conversely, if the prosecutor found no legitimate reason to even pursue an indictment, he should have explained that, rather than going through a sham grand jury proceeding.
You’re right: some of us may have overreacted. We may have lost sight of the details here. Probably because we’ve seen this movie so many times before—and since—Brown’s death.
But there’s a much larger issue you’re not addressing—the use of deadly force by police against unarmed people. If you’re not pissed off about the number of (primarily minority) unarmed people being shot by our police officers, you’re either not paying attention or you’ve just got a very different sense of what constitutes justice, morality, and equal protection.