On the other hand people want big houses and they have a limited budget. They can't afford a real mansion, so this is what they get instead. Is it really so wrong for people to want a lot of space?
I wish there was more in this blog about how to do it right other than "have enough money for a proper mansion" or "you should have a smaller living space."
I don't think this logic adds up. People care what the house they buy looks like, and some people even care what their house's appearance projects as an expression of their own taste.
People don't close their eyes when the buy houses, but neither do they have an eye for architectural nuance.
They are the ones not applying design aesthetic and thats because its expensive and custom per lot and they do not have the inclination (or potentially profit motive) to make their "stock" designs more aesthetically correct.
Once you get into actual custom builder prices it is pretty trivial to get a house that doesn't fall into these categories, and only taste prevents it.