On the other hand Antinominalism/Antinomianism is an heresy of the worst sort.
If we always act with love and compassion then we have little need for forgiveness anyway since we are in accord with God’s will.
I agree that those who think they can get free of their karma simply by believing in something or other are in for a surprise, whether it is one who chooses a deathbed conversion to Christ or one who chooses the path of the Shaheed. Both will discover that God is Love and since we are his progeny and heirs, we have to face up to our mistakes before taking up our place at His side. When we cause harm or are unkind to others we are actually harming and being unkind to God and ourselves, since we are the same thing. I am you, you are me, we are one with God.