I was there. You know what he was doing? Attacking as fast as his ping and character would allow, blocking their attacks and doing his best to stay out of the range of his enemies. Some LLJK members were just getting incredibly pissed that he was playing well. The only thing happening here that could account for supposed "shield bypassing" would be excellent timing and maybe some ping discrepancies. Hell, I was on my shield user for part of that night and the only time he "bypassed" my shield was when I let it down for a split second.
They got into some argument about the awlpike being overpowered, as well. It's certainly a good weapon (especially heirloomed), but they were taking it way too far. It was a case of poor sportsmanship on the "victim's" part. I did my best to stop his rampage, but he had 60 ping less than me, and it was really late, and I hadn't slept in 24 hours, and I hadn't used that character in a long time, and the sun was in my eyes.