Because they accused the Devils of ruining hockey when we won that way. When the Rags do it, it's somehow revolutionizing the sport. But that's the media. They're not paid to be smart.
Rangers were also 3rd in the league in goals scored, led the league in 5-on-5 goals, even strength goals, even strength goal differential, and tied with tampa for the best 5-on-5 goal differential. Secondly, it was the Penguins and Capitals who tried to play all-out defend, not the Rangers. Rangers would have much rather played run and gun with those teams.