Basically the author is self-aware that others’ preferences and economic conditions have led to a built environment that’s incompatible with their tastes, and that they don’t actually have the right to dictate what others choose to build and buy. So they decide to snobbily denigrate them because… (makes them feel better? some kind of psychological need to establish superiority?)
Tastes change. There has been a pretty continual oscillation within architecture between more minimalist and austere styling and ornately decorated styling. Feels pretty pointless to get caught up in argument that boils down to red being a better color than blue