It's important to emphasise this sentence. While the author uses the term "preterist", he is talking about what others refer to as the partial-preterist view.
Full preterism denies a future (final) return of Christ, a future (bodily) resurrection of the dead, etc, as it believes all of these things occured in a non-literal fashion during the first century. It's my understanding that full preterism is considered heretical doctrine, because of it's denial of a future literal fulfillment Christ's return and of a future, bodily resurrection of believers.
Partial preterism (the author's view) still looks forward to a literal fulfillment of those events, occuring in the future. Partial preterism is not considered heretical for this reason.
Ping for later
Apocalypse delayed is Apocalypse denied
In some cases some of these types have turned Revlation into a doom's day cult -repleat with revealed knowledge and date or event settings (which is prophesising) which never come to pass (thus false prophets).
..........................America is NOT in Bible Prophecy.