Answer
It should prove that real IBM i output can be captured cleanly, indexed consistently, and retrieved quickly by the people who depend on it. Buyers should test actual spool files, forms, scanned documents, and routing rules instead of accepting a generic demo document that does not resemble production.
The practical question is whether the repository improves findability and workflow without adding manual cleanup. If indexing rules break down under real document volume, the project becomes another filing problem with better marketing.