it's a major oversight to not indict or convict him of a felony charge
I don't disagree with you in any respect. For reasons that aren't really clear to me, courts commit major oversights of charging people every single day. Except drugs! For some reason they really like fucking people because of drugs. Punching your girlfriend and firing a weapon near some people who shouldn't get hit with bullets strikes me as exactly one of those things that someone might some way-too-large minority of the time look at and go "you know what it's hard to say what happened and it might be tough to prosecute, fuck it, 8 months probation, let's go have a beer it is Friday."