I think this season will help determine whether Johnny gets dogged by that question for the rest of his life, or if it gets relegated to a footnote in his career.
Prior to 2003 Nationals, Johnny had at least 1 (I think it was more, but not sure) of being a promising 'new' senior skater who didn't quite have the goods technically yet, although he was already known for his artistic qualities. IIRC, Weir had not competed all season until Nationals due to injury, so he came in a mystery. Most people probably thought the gold and silver were locked up (Goebel/Weiss - whether or not you agreed with it, you gotta admit, that was the most likely ending), and the Bronze was wide open with Eldredge's retirement (Savoie being the most likely). Johnny's excellent skate in the short program had a big impact, and his meltdown in the FP was enormous.
Due to his performance in the '03 Nationals, Johnny did not get to compete in the GP, so he came into the '04 Nat'ls again a mystery - would he fulfill the promise of the '03 SP? Would he bomb again? Even after Weir deservedly won the title, no one knew how he would fare at his first Worlds. Quadless, he came in a respectable 5th - the highest place US man.
I dredge all that up because I think Johnny sort of still needs to prove he can skate a whole season and be competitive. If he does well through Nat'ls and Worlds this year, I don't think people will care much what happened in '03 anymore. If his season does not go well, I think the media will come back to '03 as the event that defines him.