As the article is written, you're right. I missed that in my editing and have e-mailed Ray about this. Ray will respond in this thread.
I'm assuming the error is something like the flop was actually A
T
8
giving Ray his top set and open-ended straight flush draw. But, when the 4 and 5 come on the turn and river, it doesn't give him a straight.
Though, it would make the story so much better if Ray remembers the hand correctly and only now realizes he mucked the winner.