The poster ist a preterist?
Why do you figure it was a preterist? (Many Catholics are partial preterists: they believe that there is a sense in which a prophesy is describing current conditions... but usually to demonstrate a larger theme which will come to full fruition at a future date. For instance: the Beast of Revelations is Nero, whose Hebrew name (QSR NRN) adds up to 666. BUT Nero serves merely as a fore-runner for an apocalyptic repression.)
My figuring was based on the observation that the chart shows all NT books being completed prior to the destruction of Jerusalem in AD 70. Many futurists date many of John's books later than that (but still 1st century).
(P.S. I'm not Catholic, so I'm not familiar with the RCC take on this)