You haven't covered anything.
Philly and NYR are contenders. The fact that they didn't play us as well as other, lesser teams on a given day has no bearing on their established quality.
We were lucky to wing against the Flyers in the opener, and we played two good periods against the Rangers where we got some flukey goals to put the game beyond doubt early.
And no, the Rangers not playing well that day doesn't change that is is likely a contender, but them playing poorly does matter when attaching significance to our win.
Ultimately I think you are looking at the box score when saying how good we were in those games rather than evaluating what we showed on the ice. Easy to do also, what with our enthusiasm and hopes post-lockout. When you win, one can paper over the things that didn't work because ultimately when you win all is good. Then the tendency is for most people to be too rosy, just as the tendency is to be too negative and down when we lose. To me, in the early stages of any season what matters is how we play, not the results. If we play well results will come.
Considering that this sample of arguably good hockey this season is miniscule, I choose to consider the lameness showed in the playoffs, the stretch of games leading into the playoffs, and the majority of our start this season, as much stronger indicators.
Particularly as the issues that are dogging us are surely not strangers to any of us.