Therrien said the NHL's disciplinarians should look at that incident as well, but Carlyle pinned the focus on Prust.
"We've got to take care of our own selves and we've got to look after business," he said. "And all the complaining that they want to do about it, the whole thing was started by what we felt was one player.
"Well, Prust, we know what kind of player he is and he goes out and cheap shots Grabovski. Well, what are we supposed to do? We're not supposed to play the rest of our players for the rest of the night? Well, they've got another thing coming. That's not happening to our group."
The Canadiens are 0-2-1 in their past three games and head south this week for games in Florida and Tampa Bay.
The game wasn't a minute old when Nikolai Kulemin tipped the puck past Andrei Markov at the blue line and the Montreal defenseman — coming off two knee surgeries — was unable to get back as Kamorov went to the net to tip in the pass on a 2-on-1 break.
It was the first goal in 12 NHL games for Kamorov, the first-year winger from Estonia.
The goal seemed to throw Montreal into disarray, and the Leafs capitalized as van Riemsdyk banked a puck off Carey Price to Bozak for a shot into an open side at 6:33.
Kessel put a move on the Montreal defense at the side of the net and passed to the onrushing van Riemsdyk for his seventh goal 3:36 into the second period.
Kessel got his second of the season and second in as many games on a power play as he picked the top corner from 15 feet at 18:01.
Holzer made it 5-0 four minutes into the third period before Phaneuf scored from the slot at 13:15.
Price let in all six goals and finished with 22 saves.
"They beat us with speed," Therrien said. "They were ready to play and we weren't. We got shots, but we didn't have any net presence."
Notes: Komarov was moved onto a line with Mikhail Grabovski and Kulemin. ... Ryan White was a healthy scratch a game after taking a costly penalty in Thursday's shootout loss in Buffalo. Yannick Weber and Tomas Kaberle were also out for Montreal. ... Mike Komisarek was scratched for a fourth straight game for the Leafs and Dave Steckel didn't dress for a second game.