The integrity of the Liturgy must be maintained. It goes deeper than aesthetics, though that is important. We time bound creatures are invited to "lay aside all earthly cares, that we may receive the King...." (Orthodox hymn before Communion)
Any word or deed from Priest or Parishioner that distracts us from the eternal to the temporal rightly should be discouraged. And Priests need to be clear on the difference between administering the Sacraments / Mysteries and being a Master of Ceremonies.
Amen! I wish they would require everyone before and right after Mass to SHUT UP! It disturbs my peace!