via Michael Geist - Educational Fair Dealing Policy Shows Why the Access Copyright Licence Provides Little Value.
Comparing the scope of the copying rights under fair dealing and the Access Copyright licence provides a good sense of why the licence now provides little value. Note that before considering either fair dealing or the Access Copyright licence, educational institutions will first rely on hundreds of site licenses that grant access to millions of articles and other materials or on the millions of open access works that are freely available online. Moreover, in the case of K-12 schools, an Access Copyright backed study found that 88% of books and other printed materials are copied with permission and without the need for a fair dealing analysis or an Access Copyright licence.
He then compares Access Copyright with Fair Dealing over 5 issues relating to using copyrighted works. Access Copyright isn't really necessary for most of them, and is redundant for many.