"But the fact is that the prophecy accounts first for sixty-nine heptads (which reached "unto the Messiah") and then it accounts specifically for the one remaining heptad, and for the whole of it, by telling what was to happen in the midst thereof. Thus the prophecy (and the exposition which simply follows it) leaves no part of [the] prophetic period unaccounted for."
The author does not claim anything is wrong with the prophecy itself, but all was fulfilled. Your analysis is that which is in error.
Selective reading is futurism's trouble in the first place.
“The author does not claim anything is wrong with the prophecy itself, but all was fulfilled. Your analysis is that which is in error.”
He claims the heptads are 7 years. He claims the crucifixion occured in the middle of the 7th heptad and the abomonation which he describes as the destruction of the temple occured in the 7th heptad.
That is a 40 year gap that haunts all of the preterist forcing of Daniel 9 and he recognizes it or he would not have blamed his problem on Daniel.