First game of the season doesn't tell us much. The Eagles should be easily the best team in that division by default.
They will win 12 games this year IMO.
I would bet my entire bank account that the Eagles don't win 12 games.
They are probably the class of the NFC East, but they have major issues. The defense is not bad, it's terrible. Their WR core is adequate, but not a big strength. Foles is a good QB, imo, but not one of the top in the NFL.