Jesus knew who would condemn him, yet He shared His very Life with a man who would hand Him over. Perhaps we still don't realize the depth of love of the Mind and Heart of Jesus.
I've never, in my life, read a defense of Judas before.
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.