I mentioned that repeatedly therock! The changes to exploration (double cost) and war (range limit) are the main reasons for gameplay worsening the last two ages.
However I don't want to be entirely critical. The removal of fakewar had a significant positive effect on gameplay, a few ages ago. It was a big step forward, and had my full support from the start (I'd like to claim it was my idea, but someone else probably did mention it years ago). The changes of the last two ages are easily remedied; in fact, the most important of the changes I've proposed here are extremely easy ones for the developers to make.
I suppose I should prioritize them soon.