This is just a complete baloney non-sequitur. What does architectural style have to do with the average IQ?
I don't need to know how to grow crops, weave a shirt, or wire a plug - those things have been mechanised and automated.
Would someone from 200 years ago trade having to gather firewood for flicking a switch for instant heat? Absolutely!
Would you trade access to Wikipedia for having to travel to a monastery in order to look up a scrap of information? Unlikely!
Other lifestyles needn’t be romanticized more than our own, but they also don’t need to be demonized. Keeping yourself safe and fed isn’t a big stress for most people through most of history, yet does get quite hard for some people some times even now. The difference is mostly just textural.