To be the Devil's Advocate here; I don't play with Rev On and so in my Non Rev games the AI handles the C2C buildings just fine. As I reported before the empires in my games are not stricken, shriveling Empires because of massive Rev hemorrhages but vibrant strong opponents. So it's really a Rev problem.
Why? Because the premise that Rev is built on was for a more Vanilla BtS game. Less tech, less buildings, less Wonders than what C2C has. If the Rev team had 1st played C2C (or RoM) Then built REV, I'm positive you would see a better mesh between the 2 Mods. But that's not how it happened. So to say that C2C is the problem is putting the cart before the horse, imho.
Maybe (being the advocate again) Rev players should play a game or 2 of Non Rev C2C and then compare apples to apples.
As for me, once WW and Pacifism gets fixed properly, the AI is a strong opponent in C2C sans Rev and with those fixes will be even tougher.
Edit: @ Hydro,
I understand you completely and I like your take on how things interact, but that part of your statement I quoted just struck me as very odd. Also sometime the game dictates which buildings you can/need to build vs what you would Really like to build to see what new avenues you've created. I'm a Fan of your work, but sometimes I just need to say Whoa, slow down a bit you're moving too fast. Do you understand where I'm coming from? I think you do.

JosEPh