No, the standard for sin changed. It got much worse for those who think they can follow a written set of rules and be okay with God.
The standard for man's character is now God's character. Shadows of this were seen all throughout the Torah and carried into the New testament.
At Jesus's first recorded miracle, Mary says this to the servants at the wedding feast:
"His mother said to the servants, “Whatever He says to you, do it.” (I wrote more about this a while ago here:
LINK )
Let me pause here with a question: is Jesus about to issue a commandment? Yes, of course. The Lord of Lords, the Creator of all things, is about to give instruction to the servants. How well would it have gone for the servants if they just ignored the Lord? That's rhetorical because we just don't know.
What we DO know if that from their obedience to His commandments a miracle occurred - the economy of heaven came into the earth.
Here were His commandments to the servants:
Now there were set there six waterpots of stone, according to the manner of purification of the Jews, containing twenty or thirty gallons apiece. Jesus said to them, “Fill the waterpots with water.” And they filled them up to the brim. And He said to them, “Draw some out now, and take it to the master of the feast.” And they took it.
1. "Fill the waterpots with water."
2. "Draw some out."
3. "Take what is drawn to the master of the feast."
None of these are found in the Torah. Mary actually pinpoints the change of standard from following the law at Sinai to the new standard "Do what the Lord tells you to do."
Jesus emphasizes this new standard during His altercation with the Enemy:
"But He answered and said, “It is written, ‘Man shall not live by bread alone, but by every word that proceeds from the mouth of God.’ ”
The phrase "proceeds from the mouth of God" is present tense, it means that God's words are still proceeding from His mouth. Like here when He gives a commandment to Saul/Paul:
After the Lord arrests Saul and gets his attention, the Lord gives Saul these commandments:
"Then the Lord said to him, “Arise and go into the city, and you will be told what you must do.”
Again, not in the Torah but they are commandments none the less.