Absolutely, I thought the same thing – it was the longest of the episodes, and although you see that text message at the end, it's still open-ended – it might be the first episode that could be revisited at some point?
The moral message was lost it seems - the viewer's gut reaction to persecute the supposed antagonist now is part of the critique. Wishing for his death despite his deeds is not necessarily justice and a failure to understand his motives. Is it any better we judge and execute in secret than in public?