Off the top of my head I can think of two God blessed marriage "ceremonies" within Holy Scripture. The first is the marriage of Jacob and Rachel. The second is the marriage at Cana where Jesus was in attendance. While neither spoke of a ceremony, per se, because of our understanding of the cultural practices, we know that a ceremony of some sort took place.
The OT Jewish practices, which form the bedrock of Christianity, are very much ceremony ladden. These practices were, and are, meant to keep our lives focused. God ordained worship in the OT screams ceremony. The act of NT baptism is ceremonial, as are partaking of the Holy Mysteries.
The attitude of "no ceremony" is indicitive of a minimalist way of thinking, "what is the absolute least thing I have to do in order to...?" This attitude can be seen all through American society, fast food, quick oil changes, even Protestantism and Catholicism.
If one carries the attitude of "no ceremony" to ones marriage, then that attitude would also apply to any ceremony. No need for graduations, just mail the diplomas. No stupid happy birthday song, just give me my flippin presents already. No National Honor Society inductions, no banquets of any sort, no need to go to church, I got Jesus so that's what's important. What's up with the singing of the national anthem before a ballgame? Get real, just play ball.
True, from a Western perspective, especially a Western Protestant perspective, ceremony is a bunch of rot. So why do it? When one stops believing that anything "happens", then ceremony goes out the window. This is why so many of our Protestant churches have what amounts to a buffet for the Lord's Supper, "It's nothing but bread and juice, so why have all the useless ceremony?"
But from an Eastern Christian perspective, things do happen. Therefore ceremony is important. But unlike Western Christianity that is human centered, thus marriage vows, Eastern Christianity is God centered, thus an Eastern Christian wedding has no vows but is, in essence, a prayer meeting for the couple being united in holy matrimony. Also, unlike Western Christianity, Eastern Christianity can only work within community. A wedding becomes an extension of that community. The community must come together to pray with and for the new couple. (I guess we could just send out wedding invitations asking everyone to pray for the couple on a specific day and time.) The couple is, within Eastern Christianity's teaching, an icon of Christ's real union with His bride, the Church. Did Jesus forgive just by saying so? No. He went through a ceremony of suffering and death and most glorious resurrection.
I don't expect you to agree with my point of view. But you asked, so I responded.
Peace.
Peter