Morphy played 4 significant matches: Won by 4 x 2 against Paulsen, by far the second best american player, Won by resignation in the middle of the match against Horowitz and won by a large margin against Andersen, the best player in Europe. And also played a blindfold match against 10 strong players ( considered the strongest players ever to play in a blindfold match ) and won all games, in 10 hours. Because of all this, I don`t agree that he can not be considered an "official" World Champion. And Staunton was an idiot that was afraid to lose. He should consider an honour to play against Morphy.
And after all that, Morphy dissapeared, like Bobby.
I just read Morphys bibliography from wikipedia. There were always "complications" so they could never play. Was he afraid? Sorry, i don't know much chess history but it seems Morphy was the best at the time.