> on the author to write a guide for reviewing the request
I'm not saying that doesn't work, but writing a guide means the author is now also doing all the planning too.
A successful "guide" then becomes more about convincing the reviewer. The outcome is either a lot of friction, or the reviewer is just going through the motions and trust is eroding.
But, it becomes incumbent on the author to write a guide for reviewing the request, to call the reviewer's attention to areas of interest, perhaps even to outline decisions made.