Utter? I don’t know. I did find myself wishing they had stuck more closely to the true story, which was often compelling enough.
The bottom line of the serie, I thought, was that we’re inclined to believe the fantastic without checking snopes etc. However, when presented with some stories that you know are true or false, ferreting out the difference can be challenging.
Douglas Adams is adamant that this one happened to him. But even discounting Adams’ experience, that particular legend is plausible enough that I’d be extremely surprised if it hasn’t occurred dozens of times.