Columbia University's publicly accessible Fair Use checklist hasn't been revised since 2008. It predates cases like Google Books, Cariou v Prince, the "Jersey Boys" case and so much more.
https://copyright.columbia.edu/content/dam/copyright/Precedent%20Docs/fairu...Villanova directs students and professors to a Copyright Management Center at Purdue that hasn't existed in years, and hasn't updated its Fair Use Check list in almost a decade.
The page at
http://www.copyright.com/Services/copyrightoncampus/basics/fairuse_list.htm... that is supposedly education-focused is also from 2008.
When were your fair use policies updated? Are you relying on explanations from almost a decade ago?