I don't understand such a gesture either, especially since the past few months have revealed the flaws to an entirely online approach. Many colleges and universities will not be able to survive if they stay online for the next academic year. Students are not willing to fork over thousands of dollars in tuition for such classes. But at the same time, it's going to be hard to implement social distancing safeguards for such campuses. There has to be a solution that addresses both issues.
Cambridge is one of the few universities that has the name brand to not worry terribly about students transferring in the wake of online classes. I think a lot of private universities in the US (especially ones not in the top 20 or so schools) may struggle in the next year if they were to go to all-online, or be forced too