The play that Pettersson apparently "showed up" Matheson was such a nothing play, though. He spun with the puck and then passed it behind the net. If that's considered showing up a player, what did Don think of McDavid's goal in his rookie year against Columbus? He even celebrated with a knee down, fist pump after. Was that showing up the veterans on Columbus, or perhaps it was okay because he's Canadian. Notice that Don had to mention that Pettersson was Swedish ["Maybe in the ice follies in Sweden.." was the line]. In fact I just looked up the Coach's Corner from when McDavid was injured in his rookie year and Cherry is going nuts about how the Philly d-men purposely hurt McDavid.
Obviously Don is still living in the past and no one should take what he says seriously at this point. He's entertainment value, that's it. Different than a guy like Skip Bayless, though, because I think Bayless gives his hot takes to get noticed while Don is genuine in his thoughts. If he ran a team they would be a bunch of good Canadian boys with a few goons sprinkled in to police things.