When banks are well-capitalized and hold voluntary buffers well above regulatory capital requirements, broad based additional capital requirements, as macroprudential tools, are less effective and more targeted measures would be more appropriate, in my view.
Banks with high capital buffers have no need to respond to these macroprudential policy actions, and therefore the impact may either be marginal or different than what was aimed at. I am not sure whether the differences in banking structures and their solvency metrics were sufficiently considered when the European legislation for macroprudential policy was designed.