This isn't what you're looking for, more an indication that there is a real need for these types of services. Checkout: https://www.wordable.io/ - which focuses solely on Google Docs to Wordpress.
It's kind of nuts to think that these somewhat "edge" cases are so large as to be able to build a business around.
It is not an edge case - the PR tool market is huge and there is a lot of business that serve it. Perhaps not super many that serve the micro/small sized segments (which this would be), but there are several alternatives to chose from.
It's kind of nuts to think that these somewhat "edge" cases are so large as to be able to build a business around.