I come from a similar (and skeptical) background, I have to say I agree with the OP. I've played through as Ramesses and Rome on Prince. The former was a culture victory based around 5 cities, the latter an easy 1200 ADs domination win from Legionnaires, cannons, etc.
Civ 5 has organic gameplay without any of the life, thus I can only conclude that the gameplay is comprised of nano-robots bent on domination that will hopefully succeed. The metastrategy of 4 was rather formulaic, but at least it had structure.
For instance: worker management REALLY mattered in 4. Build order always went Worker first, unless Seafood+fishing were there. I'm not really sure why I build workers now, or spend time managing them. Luxury resources are ridiculously good, and I guess normal or food tiles can add up in the long run. Still, I don't really care if a barb trireme is blockading my fish or one of my workers dies. I lose 2 gold that turn (tooltip says food: bug?). For a game that emphasizes so much on the strategy of hex placement, hexes really don't mean as much as squares and I could care less if I lost one that didn't have a luxury on it.
Another example of the vapidity: I really don't see how it's fun to pursue anything but domination victory now. Combat is pretty much the only glue that provides mental stimulation, and when you're not attacking, your units are hopelessly blocking one another, or other civs. I'm not really sure why the other civs are in the game now. Replacing them with more city states I'm pretty sure most games would go down the same way, if they warred one another. I have no idea what the diplo climate is like at any given moment, nor do I care. When I'm ready to kill everyone, I'll let them know with cannons on their door...