Very true. The book was not written TO us but FOR us.
Just an aside—of sorts. I agree the Revelation of Jesus Christ was written long ago to a people under vastly different circumstance —in some respect. But it has relevance even today in my unlearned opinion. I once heard this whore of Babylon was described as Jerusalem (who had turned from her established center of Hebrew thought- see several Old Testament prophetic books) Another thought it described Rome.
I have in my rebellious way called the City of Denver under the Democratic Party/”progressive” influence— and more recently Washington D.C. (even drew a rather poor quality political cartoon once imaging the ACLU as the whore of Babylon) My only defense for any of this is I see in the example of Scripture -what I see in the Genesis example of the utter destruction of Sodom ,Gomorrah, and the Cities round about. How New Testament writers seem to suggest they were given as our example of how God responds to unrighteousness -and how He provides a way of escape to those obedient to Him.