I have no idea of what you mean by "reformed preterist eschatology"? It is Christ and not those you call "RPE" who link the AOD and great tribulation to the Gospel of the Kingdom being preached in all the world. The preaching of the Gospel by the faithful witnesses (Old & New Covenant church on earth) began universally with the advent of Christ come to earth a man. Prior to the advent of Christ the Gospel was known only to one nation, Israel. Any man of sin is called the "son of perdition", in unbelief and of their father, the Devil. That means whosoever is against Christ; ie. anti-christs, and has been apparent in the world from the beginning.
Matthew 24:14-15 (KJV) And
this gospel of the kingdom shall be preached in all the world for a witness unto all nations; and then shall the end come.
When ye therefore shall see the abomination of desolation, spoken of by Daniel the prophet, stand in the holy place, (whoso readeth, let him understand:)
Matthew 24:21 (KJV) For then shall be great tribulation, such as was not since the beginning of the world to this time, no, nor ever shall be.
Strong's Greek Dictionary - PERDITION
684. ἀπώλεια apoleia (apṓleia)
Search for G684 in KJVSL; in
KJV.
ἀπώλεια apṓleia, ap-o'-li-a
from a presumed derivative of
G622; ruin or loss (physical, spiritual or eternal):—damnable(-nation), destruction, die, perdition, × perish, pernicious ways, waste.
feminine noun