If you wanted the outcome of the case to be at least some money going towards opioid treatment, then this decision could jeopardize that outcome.
However, if you thought that the Sackler family being able to escape any personal liability despite the myriad of evidence of many of their involvement in stoking the opioid epidemic— and they still got to keep a very sizeable amount of the family fortune— is morally repugnant and legally dubious, then this court decision is a positive.
I would personally prefer many of the executives and members of the Sackler family to be held liable, their assets seized, and formal charges brought against them. But that’s unlikely