The issue is Dick has made a lot of predictions. Many were wrong and some were right or partially right. Neither of which makes his guesses anything more than his guess. Why should anyone give this guess any greater level of truth than his opinions on outcomes or candidates that were completly wrong. The guy is a political hack and survives on being a hack;that does not make him infallible in his guesses.
For every one of Morris's guesses there are another dozen experts predicting something else.