Which again seems like more of an excuse than a reason. If people were hit simply because they didn't say a proper goodbye you'd rightfully assume there'd be a lot more bodies on the street.
IMO the order came from Massino not Rastelli. Rastelli was near the end of his tenure and I think Joe viewed Cesear as a threat.
You don't whack a capo because of a slight of manners.
It was more of him just walking out without explanation than not giving him a proper goodbye. When you already extort a drug dealer close to the boss then insult him when you're told to answer for it, yea you are a dead man walking.
