I not agree with this.
Anderson's numbers are better, but the Sens are getting (creating) better quality scoring chances with more traffic in front of Price.
I don't think the Sens are generating better quality or more quantity scoring chances. They're just lucky that the puck is finding its way through. That Ryan goal, for instance, included traffic in front of Price and the puck snuck through. There were at least half a dozen instances of the same happening with Anderson, scrambles around the crease, where the bounces just didn't go Montreal's way.
Winning an individual game is similar to building a Cup contender in a lot of respects. In building a contender, a management team will assemble the best core it can and support that core adequately. That core will last for 4-6 years. Then the management hopes that injuries, matchups, etc., go their way at some point in that 4-6 year window for a Cup win.
Winning a game involves consistently pressing and outplaying the opponent and hoping that the bounces are at least evened out, allowing your superior talent and team to win out.
Over a 7 game series, those bounces generally do even out so that the better team wins. Montreal has outplayed Ottawa in 4 of the 5 games so far. Anderson's been better than Price, but only marginally. Ottawa's won 2 games just because they're a solid team and had a few more bounces go their way.