Do Spong, Robertson and their ilk still recite it, just move their lips or sit through it?
C.S. Lewis nailed it with his comment about pride. Sheesh.
If you look at the '79 BCP liturgy (Rite II) here and click down a little, you'll see that it does.
Take note of the "We believe..." however. It's been said (by one or more of their ilk) that this is for the group, so they're okay saying it as long as some of the broup really believe it.