I mean yes. I wish it was actually reversed on grounds that the ruling didn't stand. But that was the intention of the appeal. Dismissing it on improper venue is simply tactical. This is the legal system's way of saying, "there was enough contention in this case that we don't feel comfortable with the whole thing in the first place so we'll throw it out on a technicality and avoid inventing any case law here".
I'm not a lawyer, but I'm not 100% sure if thats's the best interpretation. It being thrown out on a technicality doesn't necessarily imply anything about their feelings regarding the facts of the case.
Basically, I would not be surprised that if the exact same case happened today, the defendants would still get jail time.