I believe Collinsworth and other media types are trying to soft sell the world on Nick Foles, so as to not make it look like he's such an incredible upgrade over Michael Vick. Hence, they will attribute as much of the Eagles' recent success as possible to the Black players on the roster, while conveniently ignoring the fact that Philadelphia suddenly became a competent team once they started playing more White guys.
The media want to paint Foles perhaps as a caretaker or game manager until either Vick wakes up from being a lousy football player, or Philadelphia contracts a real [Black] quarterback to distract the game-watching public from the fact that Foles is simply a superior athlete in every way, not only to Vick, but any number of other supposedly game-revolutionizing cocoabacks.