"We consider a variety of factors as we evaluate each skill, including the customer experience offered on the device through the skill. While our goal is to offer a broad and compelling selection of skills to Amazon customers, not all skills will be made available on Amazon Alexa."
Besides this content free email, no explanation is provided of what the issues were and how they could be remedied.
The skill is free, captures no private data and simply recites poetry in the public domain. The skill passes all functional tests, contains no objectionable material and has no duplicates available on the Alexa store. Users who enjoy the skill would likely purchase books of this poetry, dovetailing into Amazon's business model.
So where do I go from here to make the skill acceptable ?
For developers to invest their time in creating skills for this platform, Amazon must provide transparency in its vetting process and confidence that work products will not be arbitrarily denied based on the whims or tastes of individual testers who are not responsible in any manner for their decisions.