They said to him: Master, why are you laughing at our Eucharist, What have we done that merits that? He answered and said to them: I was not laughing at you; you are not doing this because you want to but because your god will be blessed through this.
When Jesus instituted the Sacrament of the Lord’s Supper, he said that it was his new covenant and gave remission of sins (Matthew 26:28). (Its covenant aspect is why it is called a sacramentum “an oath.”) This was one of the most prominent practices of the early Church, one even mentioned by Pliny making it the earliest Christian practice mentioned by non-Christians. Its importance to the earliest Christians can hardly be overstated. The writer of the Gospel of Judas rejects the Sacrament of the Lord’s Supper.
This is of a piece with making the betrayer of Jesus as his most devoted follower. The Gospel of Judas signals within the first two pages that it is rejecting those things that Christians held most sacred.