This makes me the big sad.
I'm a fan of these changes, I like the idea of limiting certain buildings, though I would argue that all buildings should be limited (maybe as a ratio? as in you can't build more X until you have more of Y etc) but all the changes are really for nought when the most problematic building in the game is unchanged. The "meta" strategy right now is just to spam aqueducts and these changes really do nothing to address that. People are still going to just make these ahistorical abomination cities with 100 aqueducts pouring enough water in there to make Venice look like a desert. Aqueducts would fit beautifully into that 3 per city catagory, or maybe even X aqueducts per civilisation level... just something to limit the absolute ridiculousness that is right now, and seemingly will still be, encouraged.