That would require someone to pretty much spirtualise entire prophetic word of the Bible, yet God seemed to be very much literal in fulfilling the prophecies made concerning jesus first coming, so why not same for His second?
Just out of curiosity, what is wrong with spiritualizing the scripture? 1 Corinthians 2:14 says "But the natural man receiveth not the things of the Spirit of God: for they are foolishness unto him: neither can he know them, because they are spiritually discerned." I would certainly say that the Scripture counts as the "things of the Spirit of God."
I've read similar Biblical study philosophies in certain literature, specifically in "Revelation Unveiled" by Tim LaHaye, where LaHaye credits Augustine, Clement of Alexandria, Origen, and Dionysius, as introducing a "dangerous philosophy" of spiritualizing the Scriptures. To me, though, a spiritual interpretation of the Scripture is quite in line with Biblical commandment from Jesus through the Apostles.