Here is the beginning of our disagreement. I do not believe that Adam’s right standing with God before the Fall was a “moral” one.
Let us stop using the term "moral" until we define it. I define "moral" and "immoral" as values that define right and wrong attitudes and behavior between rational beings. God's own holy nature is the absolute standard that defines moral versus immoral and that absolute standard has been revealed to us by His law by which he will judge the "works" (attitude and actions) of all men in the last day. This Law has been best expressed in the ten commandments prior to Christ, but is now best expressed in the life (attitude and actions) of the Person of Jesus Christ.
Adam’s eating of the fruit was a transgression of law, but not a moral law. This was a covenantal law.
"Moral" refers to right values whereas "immoral" refers to wrong values in God's kingdom and God has explicitly given the law to define those values in His kingdom as the law gives written expression to those values found in the "holy" nature of God.
"Covenant" refers to an agreement made between two or more parties where each party has certain defined responsibilities to carry out and if one or more parties fail to carry out their assigned responsibilites then the covenant is violated by that party.
God made no "covenant" with Adam and Eve in the Garden.Instead God sovereignly enacted a law without consent or agreement or advice or input of any kind from Adam or Eve. In essence, God established Himself as final lawgiver, final judge and jury over man and this is what was challenged by Satan and usurped by Adam and Eve by violating of that sovereign enacted law. The violation of that law was in essence the complete overthrow of the rule of God over his own kingdom and thus rejection of God's Laws and God's Person as final lawgiver. That singular violation of divine law was to install man as God or final lawgiver over his own life and is best summed up in the modern cliche "I will do what I will, when I want, where I want and how I want and nobody will rule over me for I am the captain of my own destiny the god of my own life."
Therefore, in the greatest sense of the term it was a "MORAL" revolution against God as it repudiated God's standard of right and wrong in the most absolute sense.
This is just as much a covenant as was the Law, which was also not a “moral law”. There are moral aspects of the Law, but the Law itself is not that simplistic. And this covenant carried with it a blessing and a curse.
Again, "moral" and "immoral" are values that define right and wrong attitudes and behavior among rational beings and God's nature is the absolute standard for determining "right" and "wrong" attitudes and behavior but since God is invisible He has established as the standard to determine "moral" and "immoral" or "right" and "wrong" attitudes and actions His law/commandments/revealed will in written form first summarized and symbolized in the "tree of the knowledge of good and evil" and then further summarized in the ten commandments which is the moral basis for the civil and ceremonial laws established in Israel and the covenant between God and Israel. It is latter reduced to two great commandments, and then further reduced to one word "love." God IS love, God IS holy, God IS righteous and thus the law is merely the expression of God's nature but best visibly expressed in the life lived by Christ.
So, "thou shalt not lie" is equally a moral value as "thou shalt not eat of the tree of the knowledge of good and evil" because both are expressions of God's will which is rooted in his holy nature as all of his commandments originate from the ultimate moral standard which is His own holy nature.
God deals with man covenantally. God’s covenant with man has been singular throughout history, yet it is expressed in different ways. God’s covenant with Adam is not divorced with God’s covenant with Abraham, or Moses, or the Church. It is always covenant restoration whereby God dwells with man. For Adam, it was also that the law (the commandment not to eat of the fruit) revealed to Adam his own sinfulness (the lusts of Adam’s heart, in the Garden to be like God).
"I am holy be ye therefore holy" is the sum and total of all covenants made by God. All covenants therefore are based upon MORAL VALUES and the absolute standard that determines what is "holy" and what is not "holy" is God's own holy nature which he reveals in THE LAW and then in the LIFE or attitudes and actions of Jesus Christ.
To steal was to be cursed under the Law. But to hang on a tree was also to be cursed under the Law..
In essence, what you are implying is that Christ failed to keep the law but violated the law by the cross and thus was judged as a sinner under the law. If Christ had failed the law prior to the cross then he would have died like any other sinner. However, it is the morally sinless life of Christ that made him fit to BE MADE SIN FOR US BY THE CROSS. Hence, your implication,whether you realize it or not is a repudiation of the substitutionary atonement of Christ for our sins.