I don't subscribe to the theory of church eras. The Revelation of Jesus Christ is prophetic, not historical.
Jesus had nothing negative to say about the Smyrna type congregations nor the Philadelphia type congregations.
I am well aware of the Nicolaitan doctrine which is alive and well.
Its not theory, its plain bible verse; and the revelation of Jesus, in my view, is both prophetic and historical , that cannot be separated, they are nearly the same thing. And no, Jesus had nothing negative to say about 2 churches out of 7; but that's a shame, it does not look good. 2 out of 7. But its a real look at HIS churches, and its dealing in reality, its not sticking your head in the sand, and thinking everything with the churches of God are just fine and dandy, when the word of God reveals it is not.
The Laodicea era is a real church of God, and its the church in the last days. Its the final stage of the church of God, and it looks BAD! Jesus is standing at its door and knocking, meaning he is not even IN these people of his. They are in such bad shape, they have locked Jesus himself out. They are a prosperity church for sure, in Rev. 3:17-18, that can be clearly seen. They , and their leaders, are into " Increase!"
Jesus describes HIS church with a pitiful look at how bad they have become; He called them wretched, miserable, poor, blind and naked! This IS a church of God! This IS Jesus church!
And they are seriously messed up, just like they are now. And NONE of them can see this. Because they are blind.