1) The Iggles had 383 yards of offense, you kinda forgot to deduct the 3 sacks for -23 yards the Boys had in this game...
2) The Iggles average 390.2 yards per game, which means they've averaged 391.1 yards per game in their other 8 games... so the Boys held them 8 yards under their season's average against teams other than the Cowboys...
The Eagles have played some SH*TTY DEFENSIVE teams as well. Houston, the 49ers, Green Bay, Tampa Bay, and Washington. The only legitimate defense they played against was the Giants, and they played them early in the season when the Giants defense was playing like crap. Philly also played New Orleans, and they aren't that much of a powerhouse defensively.
Stats are definitely deceiving. Holding the Eagles to 8 yards less than their average isn't saying much.
3) They drove 12 yards for 1 TD, 5 yards for a FG... that's 10 cheap points on a short field, courtesy of the OFFENSE (beyond the 102 yard int return for a TD, that was also on the offense)...
The Dallas D clamps down in the red-zone because they are SOLID against the run, and the field is shortened so the weaknesses of a pass rush are not as evident. An interesting stat would be how many of the scorse against Dallas in the red-zone were a result of pass versus run. Nobody disputes that Dallas is a good defense in the red-zone.
But they gave up chunks of yards against the Commanders, with Cooley having a season performace. They also were without Santana Moss, who continually burns the Cowboys for BIG PLAYS. Much of that has to do with pass pressure. I've seen a couple times where Henry would have been burned if he did not hold his receiver.
1) They average 346.9 yards per game, which means they've averaged 349.7 yards per game in their other 8 games... so the Boys held them 25 yards under their season average against any opponent other than the Dallas Cowboys...
Again, same issue.. The Giants have not played any great defensive teams. The only legitimate defense they played was the Chicago Bears defense, and that defense clamped down in the second half of the game. The only other defense that I can see that is respectable is Seattle.
The Giants and Iggles have very, very good offenses, naturally they're likely to put up better numbers on our defense than those lesser offenses you mentioned... but again, taking a close look at their game stats, it becomes apparent that it was the offense, NOT the defense, that cost the team both of those games...
The Eagles are a QUICK STRIKE offense. They tend to gain the majority of their yardage on 3 or 4 plays. I remember one time McNabb hit one of his receivers in the chest, which have resulted in a massive gain, but the receiver dropped the pass. The Giants haven't played any great defensive teams as well.
Dallas average needs to be measured against the teams they are playing against. Keyshawn and Steve Smith dropping what would have been huge gains added to our 'statistics' as well. No doubt Dallas is a good defense, but they are over-rated. As I said, Indy will be the real test.