I will defer in part to my library compatriots. You have seen a major uptick in the number of copyright experts in post-secondary institutions who are making the assessments about these things. Across the university sector, copyright offices have assumed significant roles within those institutions. They are providing the kinds of instructional education both to faculty and to students that determine the parameters they can operate under. This was an understanding, especially on the part of institutions, that they needed to be able to explain what they actually were doing with this material. This is becoming a more important request for students in general. The challenge is that intellectual property, the whole gamut of it, is becoming so incredibly important for anybody's livelihood and for the production of that.
On April 24th, 2018. See this statement in context.