Didn't the rest of the TEAM also play a huge role in the Eagles success. In 2017, the Eagles were a juggernaut who finished 13-3 with the #1 seed in the playoffs. And this was while resting most of their starters and losing the final game to Dallas. Foles came in and played decent to well. But when he started, the Eagles beat the 3-13 Giants and 6-10 Raiders during that regular season. He played well in the postseason, but didn't the defense giving up a total of 17 points in the Divisional Round and Championship Game combined play a huge role in the team's success, too? And despite that, if not for a bungled INT attempt where a Falcons defense allowed an easy INT to hit his knee and go to an Eagles player, the Eagles might have lost in the divisional round.
Yep, they benefitted from the continually inept Falcon redzone offense, which failed to utilize Julio Jones at the end of the game.
That being said, Foles was lights out in the SB, also thanks to Belichick benching his top CB before the game.
I will also say Wentz benefitted from an extremely easy schedule where his only win as a starter against a winning team was against the Rams. He went 1-2, with losses to KC & Seattle against winning teams.
They also played some real dog teams that yr. Cards, Niners, Bears, Broncos, Chargers, Giants 2x, Redskins 2x, and even Dallas 2x... was poor as well, but those others were brutal teams.
So it was a perfect storm, until the Wentz injury and to their credit they got past that and beat a Patriot team that had one of their weakest defenses in years.