It wasn't next to a capital, a food-poor location, or a hills region - it was flat grassland. You can see the edge of it at the top of the screenshot I posted, around Nanjing - 1 perfume, 1 iron, 3 bison, 2 stone, 2 fish. I suppose it's possible that China's settler started near there. IDK. It's just one example, it might be a fluke. The capital locations all seem fine, not much different from before. I am seeing more bonus resources than usual though. How many 'start locations' are there per map?
A couple more early observations: pantheon choice seems more diverse than it was in the previous patch which is nice. Haven't met any civ that lost their initial settler to barbs yet so hopefully the more cautious AI is helping with that at least.
Edit: Authority is popular, but it's not literally everyone: of eight civs met so far, 5 are authority, 2 took progress, 1 has tradition. Fewer tradition civs might be part of the reason religions are taking longer to found.
Edit 2: I'm also seeing different events from usual which is nice. I wonder how the AI is handling them though.