I didn't see anything suspicious. Can you time stamp of when you saw this "head snap"? The few head snaps I saw were easily explained. I know Xerlyn has experience in PvP so it could just be that. Maybe someone else can comment.
Hey I like my "head-snap" but lets talk about that auto clicker . @1:41 , doesn't stop clicking when you're changing armor, @1:49 , doesn't stop clicking again after changing from your sword to your fist to change your chestplate when it breaks. There's also multiple times when your block-hits was getting canceled by the auto clicker. I know what an auto-clicker looks like so this is blatantly obvious to me :d. Good fight tho .