Because assinging a 1 or a 0 to the statement "Aurini was good enough to pull that shiznit off" won't change anything else in your belief system; it presents no significant consequences to your ability to understand the universe. However there are emotional effects.

Believing the story to be generally true, and my claims to be highly accurate, means that you live in a slightly more interesting universe. Disbelieving means that things are slightly more grey and tawdry.

So you might as well believe in God, because what do you have to lose?