The words ‘this is my body … this is my blood’ are the words of consecration. Not the prayers the OP mentioned (which are indeed very quick to say and can be said silently with no visible gesture).
I’d imagine there are Eastern liturgies, perfectly validly and licitly celebrated ones, that don’t have our Prayer of Presentation of the Gifts in 'em.
Lily:
Actually, they do have prayers for the preparation of the gifts, but they do it out of sight of the congregation:
Proskomedia (or prothesis) is the divine service celebrated by the priest and deacon prior to the Divine Liturgy during which the bread and wine are prepared for the Eucharist. This service is celebrated at the Table of Oblation (also known as the prothesis table). Proskomedia, when translated to English, means “preparation.”
orthodoxwiki.org/Proskomedia
RUSSIAN ORTHODOX CHURCH OF ST. SERAPHIM OF SAROV
Sea Cliff, New York
Proskomedia
Bp. Alexander (Mileant)
Proskomedia is a Greek word meaning offering. The first part of the Liturgy derives its name from the early Christian custom of the people offering bread and wine and all else that was needed for the Liturgy. Therefore, each small loaf of the bread which is used in it is termed a “prosphora,” another word meaning offering…The prosphora must be round and formed in two parts, one above the other, as an image of the two natures of Jesus Christ, divine and human. On the flat surface of the upper part a seal of the Cross is impressed, and in the four sections thus formed are the initial Greek letters of the name of Jesus Christ, “IC XC,” and the Greek word “NIKA,” which mean together “Jesus Christ conquers.”
*The wine used in the Mystery must be red grape wine, as this color reminds us of the color of blood. The wine is mixed with water to remind us of the pierced side of the Savior from which flowed blood and water on the Cross. Five prosphoras are used in the Proskomedia to recall the five loaves with which Christ miraculously fed the five thousand, an event which gave Him the means to teach the people about spiritual nourishment, about the incorrupt, spiritual food which is bestowed in the Mystery of Holy Communion (John 6:22-58). One prosphora, known as the Lamb, is used for Holy Communion, in accordance with the words of the Apostle: “For we, being many, are one bread and one body, for we are all partakers of that one Bread” (I Cor. 10: 17).
The Proskomedia is performed by the priest in a quiet voice at the Table of Preparation when the sanctuary is closed. During its celebration, the Third and Sixth Hours are read.*
stseraphimschurch.org/articles/proskomedia-e.html
I deleted one part which contains a debate between the Eastern and the Western Churches.
FYI, If you ask Fr. Ambrose and the other Orthodox brothers, you’ll see that they are “Maximalist” in their outlook, that Orthodoxy (and Eastern Catholicism) doesn’t have the division between Valid and Licit that we have in the West.
According to the latest Papal Encyclicals on the issue, all that is required (in an emergency) for a Valid Concecration is that the Priest recite the words of Christ from the Gospel of Matthew: *“Take, eat; this is my body.”
Afterwards, he took a cup, and when he had given thanks,
he gave it to them, saying,
“Drink of it, all of you; for this is my blood of the covenant, which is poured out for many for the forgiveness of sins.” *
(Matt 26:26-27 RSV)
I beg you to remember that that is all that is needed IN AN EMERGENCY. The latest issue of the GIRM is the controlling authority on all other Masses and Consecrations within the Roman Catholic Church. Although it allows many prayers to be said quietly, it does require that these prayers be said. and, Most of these prayers require far more than 5 sec. to be said reverently.
If you really believe that he’s skipping the prayer, ask the priest, but ask him privately and politely - If you have to, set up and appointment and take him out for a cup of coffee or lunch (depending on your budget).
Your Brother in Christ, Michael