I teach at York University’s Schulich School of Business and I can confirm that the business library has also been contacted by Harvard Business Review. Instructions were sent out to all professors advising that they could not /provide links/ for students to the material in the HBR collection anymore. The instructions we were given seem a bit different from the summary in that students could be assigned articles, but it had to be done in a particular way. The library has posted official guidelines for faculty on how to proceed that are publicly accessible. Given the situation with Access Copyright suing York University and the other universities that opted out from their licensing cartel, there is a lot of fear at the university, and the business school in particular, especially because business cases are treated differently under Canadian copyright law than other types of written material.