I honestly don’t think the imperial age is balanced, there are civilizations that clearly have a huge advantage if they make it to imperial, for example, it is no secret that civilizations like France and Germany benefit more from the economic advantages of the imperial thanks to settlers.
I believe that the imperial age needs a rework to improve the representation and power of an empire as well as improve the balance of some civilizations, obviously this is just my opinion.
I agree that revolutions need to be updated, in fact I proposed some ideas for new cards in another topic,I recommend you to take a look.
Although I do not share your point of view on the imperial age, I appreciate that you encouraged to comment on your opinion.