How do I know this?
“But wait: isn’t the league supposed to be cracking down on head-shots?”
Yes. King’s contact with Pietrangelo was not a head-shot. It was a reckless play which involved a player in a vulnerable position relative to the boards. Thus: boarding.
“It should have been a major!”
A major boarding penalty is appropriate if the ref believes the check was (1) especially violent, or (2) an attempt to injure. It was neither.
“But he’s our best player!”
Right. The usual complaint leveled at the league is that they don’t punish star-players but always punish role-players. King, however, is a role-player.
There are penalties for reckless and/or dangerous behavior. That’s why King was penalized.