I disagree, in my present game it is 1700 and I have 33 Founding Fathers. They have given me:
Cheaper prices for units bought in Europe
Faster travel for my trading ships, scouts, dragoons and wagon trains
Free Indentured Servants/Missionaries/Elder Statesmen
More Native Converts
Better Relations with the Natives
More Crosses (so more immigrants)
More Liberty Bells (so more FF)
Free Promotions for my Military
Increased Production
Faster Education
All those benefits make the final WOI a walkover.