This "fact" about MIT cancelling the Elsevier subscription is often cited but in isolation, it's misleading because it makes seem like MIT students and faculty don't even need Elsevier articles. That's not true.
What happened is that MIT switched to a pay-per-article or library loan method: https://libraries.mit.edu/scholarly/publishing/how-to-access...
MIT in providing some other access methods to the same Elsevier articles for their researchers -- at the cost of some extra inconvenient steps -- is actually proving the opposite of the anti-publisher stance: The Elsevier publisher's articles are still valuable to us.
It's the subscription they cancelled and not the articles.