Well, I think the ancient teaching of the undivided church was that holy orders was grace bestowed on the ordained transmitted from the Apostles down a line of bishops, and that bishops exclusively could consecrate new bishops or ordain priests, and bishops or priests could exclusively through the word of God and the power of the Holy Spirit and by virtue of their ordination confect the body and blood of Christ.
Yep- I understand that. But the grace bestowed is not defined as to what that grace is. We pray for the grace to perform the task, but that doesn't necessarily mean that a special unique charism is given that makes wine turn into bread. The notion that only specially zapped people have the magic to change earthly elements into God is about as far from the Judeo-Christian scriptures as one can get. That's why the Church (esp in the West) has always accepted that the responsibility for making a sacrament valid does not rest on the minister, but on the Word of God. As St Augustine put it: "Accedat verbum ad elementum, et At sacramentum", that is "If the Word be joined to the element it becomes a Sacrament". This means God makes sacraments, not priests or bishops.
The deacon, priest or bishop is given the responsibility for the public exercise of the priesthood of all (just as in the OT) and we pray in their ordinations and consecrations that they receive the grace necessary for those tasks (as we are taught in the scriptures) So,
grace is genuinely given (from God the giver of grace, not from the bishop but through his office and prayer) but
no special magic power is passed on. Not in scripture anyway. Medieval theology may disagree, but much of that had to be reformed, didn't it?
Without this understanding of sacramental validity and grace coming from God via His Word, one could not be in agreement with the Articles:
"Article XXVI
Of the Unworthiness of the Ministers, which hinders not the effect of the Sacrament
Although in the visible Church the evil be ever mingled with the good, and sometimes the evil have chief authority in the Ministration of the Word and Sacraments, yet forasmuch as they do not the same in their own name, but in Christ’s, and do minister by his commission and authority, we may use their Ministry, both in hearing the Word of God, and in the receiving of the Sacraments. Neither is the effect of Christ’s ordinance taken away by their wickedness, nor the grace of God’s gifts diminished from such as by faith and rightly do receive the Sacraments ministered unto them; which be effectual, because of Christ’s institution and promise, although they be ministered by evil men."
Scriptures teach clearly that God's grace can leave the sinful person or place. However, it also teaches that
all things come about by, through and with His word. Thus even though the minister of the sacrament be the worst sinner, if He is working within the office to which he is validly and properly called and is working with the Word of God, God is dispensing grace through that Word. The word has all the power and authority as the means of grace, the minister is being "borrowed" in a sense. If it were any other way, you would never be certain that God's grace is being offered in any sacrament or in any absolution.
I don't think it's a case where lay people could do it and are just told not to as a matter of church order. That would be a very Protestant understanding.
While people who dabble in theology like to throw around terms like "that's Protestant" or "That's Roman" and all that kind of nonsense, the real question is not what label to throw on a teaching, but to test whether or not it is true. However, for the sake of being honest with terms and avoiding inaccurate hyperbole, I have not seen any Reformation era Protestant Confession that allows lay people to administer the sacraments without a valid call to the ministry. That would include the Anglican Church. However you do find church authorities that are most ancient that allow for laymen to administer the sacraments in certain cases. In fact, you even find bishops being elected and set apart for the episcopacy from among the presbyters. That throws a curious spanner in the works for
some versions of sacerdotalism.