Meh. If you don't like a McMansion, don't live in one. It sounds like petty jealousy.
Also note the blog is sort of a tautology.
"Mc·Man·sion
məkˈmanSH(ə)n/
noun
a large modern house that is considered ostentatious and lacking in architectural integrity."
So houses lacking in architectural integrity ... lack in architectural integrity?
The author seemed to go out of his way to ground all of his critique in well-cited design principles. It's depressingly indicative of modern internet discourse that the first recourse is a lazy ad hom.
These houses are often built en masse to hit marketable squarefootage numbers and get noticed in listings, for the cheapest possible cost of construction.
No man is an island.