Jury verdict doesn’t set legal precedent, so the law hasn’t changed.
Except that it does. When cases are run, previous cases are cited for reference.
It was an appalling outcome. It should have been guilty but with mitigation.
It really doesn't, @Gargellen. Previous decisions of judges are cited as precedents, and generally judges at a higher level. The decisions of juries are never cited as precedents and couldn't possibly be, because we are never told the reasons for their decisions.
It wasn't at all appalling. Juries are entitled to make a decision based on the facts and evidence as presented to them. One of the glories of the jury system is that, just sometimes, they give what might appear to be a contrary verdict - it's well known, for instance, that in the days of capital punishments they would regularly deliver Not Guilty verdicts or verdicts of guilt of a lesser offence because they didn't feel the accused deserved t die.
None of us (I assume) were in court so can't claim to have better knowledge of the case as presented to the jury than they do. Even if we were, it doesn't mean we know best. I was once on a jury where we all agreed that the accused was almost certainly guilty of something but the prosecution simply hadn't produced the evidence to show he was guilty of what he was charged with, so we found him Not Guilty. I was unfortunately foreman, and the prosecutor was obviously absolutely furious - if looks could kill I'd be dead now. But it was his own fault for not assessing the evidence properly.