The eulogies are usually offered after Communion, though, in my opinion, they shouldn't be done until after the Final Blessing. Maybe that's what Mr. Peters was talking about a violation of liturgical law, though after Communion is the only time I've seem them done in the last few years.
The Order of Christian Funerals is quite specific: A brief homily based on the readings is always given after the gospel reading at the funeral liturgy, and may also be given after the readings at the vigil service; but there is never to be a eulogy (OCF, 27).