Yeah, the key with the Penguins is to be patient, they want to take the game to you, they have speed and skill but aren't that physical. Flyers were dumping the puck in the air to center ice, taking away the opportunity to jump on outlet passes and attack the O-zone, and dumping the puck into the D-zone then chasing with an aggressive, physical forecheck. That's the kind of strategy that pisses off some fans, but against a more talented team, provides their only chance to win the series.
Of course, nothing will work if Elliott can't play like this the rest of the series, he doesn't have to stone Crosby on a regular basis, he does have to control rebounds, freeze the puck, and control the pace of the game.