Some of it was needing to build cheap, low-maintenance buildings quickly, to replace what had been destroyed in the war. There's nothing wrong with making a considered decision to build something ugly and cheap because getting usable space is a higher priority than making it look good. But when you try to make a virtue of that by pretending ugly is pretty, then you're making a major mistake.
Makes fully sense indeed. Ironically enough, what is built nowadays around me is exactly the other way around: personal space buildings look at least half-way passable, and public/office buildings are all those gray square turds, with some glass. But yes this is Switzerland, birthplace of Le Corbusier...
