I've never bought into the seven churches of Revelation 2 & 3 representing the progression of the Church Age. I believe to do so does too much harm to the doctrine of the Imminent Return of Jesus.
Interesting view.
However, while generations were going through those different Church ages, elements of all seven churches were present (as they are today)
What they did not know is which element was the dominant one.
Thus, while the Jews waited each generation for their Messiah and he could have come at any time, there was one generation that had been picked for that privilege long before it happened.
We now have the benefit of looking backward and seeing how that Messanic line developed, but they could only wait hope that they would be the generation in which it would occur.
We are the generation that can now look back and see the others over 2,000 years and notice the comparsion of those other 6 Churches with history.
Revelation is progressive as the prophecies in Daniel were sealed for another generation.
The 'churches' were not even revealed to Paul, but to John at the close of the First Century.