The Holy Communion you omitted is the only means by which the marriage can be consumated in Christs precious Body and precious Blood.
Really? I had always thought that a marriage is consummated through sexual relations. According to your logic, how could marriage even exist before Christ gave us the Eucharist? What was that, then, that Jesus attended at Cana?
This is an easy answer that you should know!
With the point of you question we could also ask: How did we worship God at all before Christ?
Prior to Christ and the establishment of His Holy Church on earth marriage and all types of orders of worship existed along with all of the pagan and heathen ritualism all of which were tossd out by our Lord Jesus Christ for His true beleivers.
The wedding at Cana was not A 'Christian' wedding. But you should know that!
One of the major themes of that reading is the fact that the Lord had not established His Church and ministry as he said to The Holy Virgin Mary: "It is not my time" when asked to react to the wine being finished. Albeit He did perform a miracle of changing the water into wine. This shows the power of the intercession of the Holy Virgin Mother of God.
Today certain things still cling to us. Especially those things that make 'absolute' sense to us like what you hold as 'consumating' a marriage is still a physical act to be done by men and NOT by God. With this method man still holds in his weak and corrupted hands some 'real' part of the Holy sacrament; in fact 'validating' the Holy Rite which is purely Holy and in Gods providence alone. WE actually have no part all.
The Marriage Rite is NOW within the Body of Christ.....all of it. We do not make the Rite firm and binding by our own sinful flesh and lusts. It is NOW the Flesh of the Lord Jesus Christ that is mingled with the married couple at the end of the wedding effectively "comsumating' the marriage in the Body of Christ. This means that NO man has a hand in the Marriage Rite or its validity. Consumation is by the Lord Jesus Christ Holy Body. Thus the Rite is pure and Holy. The new couple are ONE FLESH.....in Christ.
This is one of the major reasons why the Marriage Rite is referred to by the Holy Church as a 'Mystery'.
Christ leaves nothing unfinished.
He does not need us to help with the Sacraments by doing some physical action that any devil can do.
Our consumation is Holy, Pure and undefiled. Only Orthodox Christians enjoy such a beautiful mystery and experience. Man and woman may proceed as is natural and normal to Holy Matrimony and enjoy a life of bliss sharing in all things being one including the blessing of children and whatever else God allows them.
The key point is the Marriage Rite 'in-mass' is Christ's property. It is a Mystery.
Only God knows.
So it is very far from Mystery if we are allowed to 'make the rite work the way we want it to'.
Yes this is done a lot today. The Churches are allowing some of this liberalism with the Holy Rites. This has been so prevelant for so long that many people beleive that this is the norm and what I am saying is not.
That is what is alarming to me.