Thanks.... I was missing the <skipErrorNoDescriptorsFound>true</skipErrorNoDescriptorsFound> workaround, by using the suggested alternative in the first comment @ http://jira.codehaus.org/browse/MNG-5346. (which I don't think works)
I raised https://jira.codehaus.org/browse/MPLUGIN-238 (with an attached project) to suggest stopping the helpmojo goal from extracting all of the mojo metadata, as that appears to be the underlying problem I'm having. Regards, Dan.
