Once defenses clamp down, as you must to win championships, this receiving core is completely screwed. They lack the physical presence needed to outmuscle CBs at the line, and it's killing the Eagles. IMHO it's a much looser game in the regular season. Really, it's a similar premise as hockey: Great scoring gets you 120 points in the regular season; great goaltending wins Cups...
The mounting pressure each year doesn't help either.