The BCL explicitly warned the government of risks to the fiscal balance well in advance, already in 2002. Furthermore, the demographical and macroeconomic challenge to the pension system, which by now is widely acknowledged, was subject to a BCL working paper in 2003. The health system was also under scrutiny in several issues of the BCL monthly bulletin.
At the same time, however, this does not mean that central banks are allowed to ignore the distributional effects of monetary policy, especially if the distributional effects have an aggregate impact. With this aim, central banks should be, and in fact are, open to learning about heterogeneous agent macroeconomics. These days, much progress has been made on this front in computational economics.