That's fine, but so why don't we? If the whole purpose of downloading all these courses is so that we can continue to access them after Coursera goes full moneygrub mode, surely someone is willing to sacrifice their Coursera account for this?

Lets think about it from ethical stand point. The kind of people who downloads and wants to learn is just a very tiny fraction of people in the entire tech population(Even most people in tech industry does not want to invest in learning). Their contribution will be significant. So what about the hard work the authors who had put in to create the course ? Don't worry their life will not be affected much(not like they will miss being billionaire). The only people who might get affected is the undeserved people who is taking advantage of intellects like the university.

ToS and even copyright law never stopped SciHub and LibGen.

An old saying I remember from my days in the ebook scene: "Those who want the knowledge will always find it."