This was prior to the Lord's supper, but he still partook.
Aroq: --which proves that partaking, and potentially aspiring to become part of the anointed does not guarantee a good outcome, or gives you a sterling personality. Judas never became one of the anointed nor of the GC.
Nobody of that first century non-overlapping generation could be part of the Great Crowd, which comes "out of the Great Tribulation" that is scheduled to happen " in the Lord's day", not later than 2075. Judas too had an earthly hope, squirreled away money to be comfortable when it was supposed to happen,-- in his lifetime.