LaCuesta twas the priest who tried to keep Maisons parents from eulogizing their son, and i do not see where the coach was trying to give a eulogy.
As for eulogies not being permitted at Catholic funeral Masses, that is what the Order of Christian Funerals says (OCF # 27; cf. CCC 1688) yet "A member or a friend of the family may speak in remembrance of the deceased before the final commendation begins. (OCF # 170). But the force of these is manifested by how the hierarchy practices it, and guess who gave a eulogy at Teddy K's Catholic Funeral?
In contrast to a eulogy (properly so called: that is, a homily or sermon oration) the celebrant or a relative or friend may express during the concluding rite (GIRM 89) -- not a sermon. The remarks must be brief and under no circumstances can the deceased person be referred to as being in heaven.
We commend the deceased to the mercy of God, which is beyond understanding. That is the purpose of the Liturgy.
Loved ones who wish to speak of memorial serice (not liturgy), prayer service to be held in a home or funeral home, at a commemorative dinner or at the graveside following the rite of committal.
Thank you for giving me the opportunity to clarify.