Roy got into a screaming match with Anaheim coach Bruce Boudreau during Colorado's home opener on Wednesday, pushing over a glass partition between the two benches.
While the league fined Roy $10,000 for the display, Cherry said on his Coach's Corner Segment of Hockey Night in Canada that he believes the incident sparked the players on the Colorado bench.
"Everybody's saying, 'what a bad thing.' Are you crazy? All the players love this," Cherry said over video footage of Roy's outburst. "Look at the players looking in the background. They're smiling. They love it. They're in the game."
Cherry then showed footage from a 1997 game in which Roy exchanged blows with Detroit Red Wings goalie Mike Vernon.
"What you think they're talking about in Colorado after that game? You really think he wouldn't act like that?" Cherry said. "He's a fighter."
Cherry also mentioned the $10,000 fine imposed on Roy, saying "that's nothing" for the Colorado coach.
But Cherry said Murray had to negotiate with him, that was all it took for Alfredsson to decide to go to Detroit. He added that one of the benefits Alfredsson had in signing with Detroit was there would be less pressure there being captain and answering everything, and that he would be with all the Swedes.