They are a well run team who are willing to spend money, but they've also been fortunate. But I guess you have to be to win two SBs in 10 years and come close to a third with different coaches and different QBs.
In addition to never having to pay the penalty for drafting the wrong QB top 5 AND signing him to a long deal, they got rewarded for it with a bounty of picks to rebuild the team. They benefited this year from a weak NFC, being healthy themselves (Barkley always had a long term injury with the Giants, but played every game this year), then Detroit's defense gets wiped out by injuries and they get a dream path to the NFC Championship.
Yea, they have a very good roster but I think they got very lucky with Fangio coming in and transforming their defense.
Barkley was amazing, and their OL and WR's are very good, but ultimately this is more or less the same roster as last year plus Fangio and a few DB's. Fangio deserves the vast majority of the credit for turning them into one of the best defenses in the league from one of the worst.
And their offense was more or less just Barkley going nuts with a few Hurts runs mixed in, with Brown making a few plays here and there. If they had their defense from last year and the same offense they're probably a 10-7 team at best.
I do think they got extremely lucky with Detroit's injuries and them turning in a Cowboys-esque performance against Washington, because even with the injuries I think Detroit would've beaten them at home in the NFCC.
Let's not forget that the Rams were like 9 yards away from beating the Eagles on the road in the second round.
The biggest thing with the Eagles is that their FO is constantly tinkering and looking for opportunities to improve. On paper their roster isn't really any better than what we had from 2021-23 but the fact that they have a more stable organizational culture and a FO always looking for ways to improve the roster is what makes the difference.