Please quote the Canon and each epitome in full and explain each to me. That's the only way I can get a grasp of your argument.
Sure, I will start with the canon. Parenthetical information will be my "commentary" to show who is being addressed, etc. The Canon:
The great and divine Apostle Paul with loud voice calls man created in the image of God, the body and temple of Christ. Excelling, therefore, every sensible creature, he who by the saving Passion has attained to the celestial dignity, eating and drinking Christ, is fitted in all respects for eternal life, sanctifying his soul and body by the participation of divine grace. Wherefore, if any one wishes to be a participator (ie communicant) of the immaculate Body in the time of the Synaxis, and to offer himself for the communion, let him draw near (line up), arranging his hands in the form of a cross (which is still done today, with the arms are crossed), and so let him receive the communion of grace. But such as, instead of their hands (instead of the communicants crossing their hands), make vessels of gold or other materials for the reception of the divine gift (ie, the communicants bringing their own cup), and by these (or in these) receive the immaculate communion, we by no means allow to come (they are not allowed to commune), as preferring inanimate and inferior matter to the image of God (ie, they defile the body of Christ with something unclean). But if any one shall be found imparting the immaculate Communion to those who bring vessels of this kind, let him be cut off as well as the one who brings them (if a priest serves the Body to a communicant in the communicant's vessel, and not out of the priest's Chalice and into the mouth, both are to be excommunicated).
Whoever comes to receive the Eucharist holds his hands in the form of a cross (again, the person crosses their arms in reverence), and takes it with his mouth (the communicant receives the Body directly in his mouth, symbolizing not "taking" the Eucharist, but receiving it); whoever shall prepare a receptacle of gold or of any other material instead of his hand, shall be cut off (if anyone brings a vessel to take it in, instead of crossing their hands, they are to be excommunicated)
At first, perchance, this was invented from pious feelings (this was the original ("at first") practice of the Church, which came into being through piety, as not to defile the Body), because the hand which came in contact with base and unworthy things was not worthy to receive the Lord's body (how much more unclean is a hand than a vessel, which has also been condemned!), but, as time went on, piety was turned to the injury of the soul (men started using this custom of piety as self-righteousness), so that those who did this when they came to receive with an arrogant and insolent bearing (again, they were arrogant), were preferred to the poor.
Finally, St. John of Damascus was a baby, as was pointed out, when this Council was held. His practice is not older than Trullo, much less St. Cyril, who as we saw above, expressly condemned the use of hands! There is nothing I can say about his comments, for he spoke after the Council, and never said anything of the antiquity of what he did.
So, a simplified timeline:
Early Church institutes practice of receiving in the mouth (likely 1st century AD)
St Cyril says this practice (also by this we know it was common in his day, ie universality) was starting to be used for self-righteousness (4th century AD)
Trullo, in light of people avoiding the practice out of humility (to avoid being seen as self-righteous), makes it clear that the ancient custom is to be followed (this is why the appeal in the beginning of the canon is made, to show that it is not inherently self-righteous) (692 AD)
St. John the Damascene diverges from the ancient practice (8th century AD)
Balsamom, being a legal scholar
, comfirms the canon's meaning (12th century AD)
Hope that helps!