When I think of fair dealing in an educational context, I think of a student going to the library and photocopying an article for research or private study. I have two degrees. I am a bit older than the students of today, so I didn't have a lot of digital resources. However, I wasn't without digital resources in my time. I completed my education, for which I had a rather large student debt, with research and private study as my fair dealing options, and I felt unrestricted in that education. I really don't think, despite any technological advances today, that there has been a need for an expansion on that.
What we're talking about when we talk about fair dealing being applied to copying in schools, is not the student going to the library and copying for research and private study. We are talking about published books that are full of works that we have written and have not given permission to be sold to students. The permission comes with the licence. We need to reapply the licence.