It was intentional, that's the bottom line really. They are taking a strong stance on players trying to punch other players in the head.
Nash/Miers, despite the outcome, was clearly not intentional - more reckless or careless if you will. As much as seeing Miers cop one gives me a mild stiffy it's not really the same sort of issue we have here with intent/potential to cause harm vs accidental harm.
I was thinking 3 minimum, 5 max. If the club can appeal it down to 4 that's great but I'd be surprised.