A eulogy does not belong in the liturgy, nor before or after it in a church.
Eulogies, no matter how well intended, are out of place at Mass.
The purpose of the Requiem is to pray for the repose of the soul of the deceased.
GIRM 382: "At the Funeral Mass there should, as a rule, be a short homily, but never a eulogy of any kind."
Problem solved. No eulogy "of any kind." Pretty clear to me.
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