Hi,
<http://www.geocities.com/Athens/Crete/4266/deansp.htm>.
Overall, I'd say this parable wasn't as well written -- it was much more obvious that the author was "proving a point" (a well written parable is a story with a "moral", not a piece of apologetics). In addition, I think that the story attacks a straw-man, as most people are quite willing to admit failability -- the dogmatic faithful being the only serious exception! Still, it has a valuable point to make as well...
ERiC