Agreed - a welcome and overdue resource!
I wanted to share here another resource that can be helpful at origin - Oxfam America's "Certificaciones de café - Versión Popular" (only en español). Oxfam sponsored some academic study of certification impacts at origin a number of years ago whose results were never published. This helpful document, however, was one of the unexpected outcomes/pleasant surprises of the process.
I don't have permission to distribute the document, but here is the image of the cover if anyone wants to get copies from Oxfam America.