Perhaps but they appear to be talking about the current. Either way, the answer however is largely the same just reframed and rephrased. They were built to be functional and quick to deal with the fact hundreds of thousands if not millions would be homeless if nothing was done due to the destruction of fighting the Nazis. They then were not able to be maintained and modernised post 1991 for the reasons outlined.
Perhaps but they appear to be talking about the current. Either way, the answer however is largely the same just reframed and rephrased. They were built to be functional and quick to deal with the fact hundreds of thousands if not millions would be homeless if nothing was done due to the destruction of fighting the Nazis. They then were not able to be maintained and modernised post 1991 for the reasons outlined.