Check out this stat: (something reasonably close)

Teams that have won a divisional playoff by 7 points or more the week before, an easy game, and have missed the playoffs the year before, and go to play on the road in the conference championship game are 2-26.

In other words:

Atlanta missed the playoffs in 2003 (last year)

Atlanta won by more than 7, huge game.

Atlanta has gone further than anyone expected, played in the playoffs and won a huge game.

Atlanta's season is a success and has been validated.

Philly's hasn't.

It's an interesting stat.