I'm wondering where the altar is forbidden as part of the Remembrance since it has been part of the Remembrance since early Christianity. From a Christian source recording the history of the Christian altar.
The Christian altar consists of an elevated surface, tabular in form, on which the Sacrifice of the Mass is offered. The earliest Scripture reference to the altar is in St. Paul (1 Corinthians 10:21); the Apostle contrasts the "table of the Lord" (trapeza Kyriou) on which the Eucharist is offered, with the "table of devils", or pagan altars. Trapeza continued to be the favourite term for altar among the Greek Fathers and in Greek liturgies, either used alone or with the addition of such reverential qualifying terms as iera, mystike, The Epistle to the Hebrews (13:10) refers to the Christian altar as thysiasterion, the word by which the Septuagint alludes to Noah's altar. This term occurs in several of the Epistles of St. Ignatius (Ad Eph. v; Magnes. iv, 7; Philad. 4), as well as in the writings of a number of fourth and fifth century Fathers and historians; Eusebius employs it to describe the altar of the great church at Tyre (Church History X.4.44). Trapeza, however, was the term most frequently in use. The word bomos to designate an altar. was carefully avoided by the Christians of the first age, because of its pagan associations; it is first used by Synesius, Bishop of Cyrene, a writer of the early fifth century. The terms altare, mensa, ara, altarium, with or without a genitive addition (as mensa Domini), are employed by the Latin fathers to designate an altar. Ara, however, is more commonly applied to pagan altars, though Tertullian speaks of the Christian altar as ara Dei. But St. Cyprian makes a sharp distinction between ara and altare, pagan altars being aras diaboli, while the Christian altar is altare Dei [quasi post aras diaboli accedere ad altare Dei fas sit (Ep. lxv, ed. Hartel, II, 722; P.L., Ep. lxiv, IV, 389)]. Altare was the word most commonly used for altar, and was equivalent to the Greek trapeza.