I agree it can be useful (latency, availability, using off-peak resources), but running globally should be a default and people should opt-in into fine-grained

I agree it can be useful (latency, availability, using off-peak resources), but running globally should be a default and people should opt-in into fine-grained control and responsibility. From outside it seems that either AWS picked the wrong default to present their customers, or that it's unreasonably expensive and it drives everyone into the in-depth handling to try to keep cloud costs down.