And rightly so!
For two reasons: a) The "other people" didn't routinely perform miracles; and b) The other people didn't ask us to fundamentally change our belief systems.
See my tagline!
Example: If your newspaper boy mentions to you that you have a new neighbor named Joe Brown from Georgia, you are justified in assuming that he is telling the truth. However, if your newspaper boy tells you that he saw Joe Brown raise the dead, that he was born of a virgin birth, that he held conversations with the Devil in the desert (who else was there to report on that, by the way?), and that you should give your money to the paper boy so that you can save your soul and so that he can go out and spread the word...
Regards,
+1.