No one is defending Judas. My point is, Judas did not betray Christ until he kissed Jesus on His cheek, well after the Last Supper and the Agony in the Garden. At that point, Judas did become a known, public sinner. He never received Holy Communion again.
I suggest you view Mel Gibson's movie, when it comes out, since you're apparently too lazy to read the New Testament.
Then we can talk about Peter,the future first Pope, denying Christ three times and why he was given Holy Communion.
As I said, we have miles to go before we understand the Mind and Heart of Jesus Christ.
Perhaps we should love greatly, and condemn lightly.
1825 Christ died out of love for us, while we were still "enemies."[100] The Lord asks us to love as he does, even our enemies, to make ourselves the neighbor of those farthest away, and to love children and the poor as Christ himself.[101] The Apostle Paul has given an incomparable depiction of charity: "charity is patient and kind, charity is not jealous or boastful; it is not arrogant or rude. Charity does not insist on its own way; it is not irritable or resentful; it does not rejoice at wrong, but rejoices in the right. Charity bears all things, believes all things, hopes all things, endures all things."[102]
1826 "If I . . . have not charity," says the Apostle, "I am nothing." Whatever my privilege, service, or even virtue, "if I . . . have not charity, I gain nothing."[103] Charity is superior to all the virtues. It is the first of the theological virtues: "So faith, hope, charity abide, these three. But the greatest of these is charity."[104]
Catechism of the Catholic Church
It's a good book! Perhaps you should read it.
I tried to look it up in all four gospels online, and if there is clarity on whether or not Judas actually received, I would like to know. He may have left beforehand.