In writing this, do you mean to imply that a congregation chanting the responses in unison, as Holy Mother Church desires, sounds less beautiful, and that it may be preferable for a silent congregation to listen to the choir sing the entire liturgy?The reason to do harmonized responses is because it sounds beautiful.
And invoking Holy Mother Church is ridiculous because you would have to believe that there is only one unique expression of the Roman Rite to believe that tradition can only admit of one sort of response (see Byzantine and Ordinariate for starters).
I doubt this given the nature of the responses.Finally, while I would love to be part of a silent congregation witnessing a whole liturgy sung beautifully by a world class choir, a congregation can sing the chant responses at the same time a choir harmonizes them.
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