This is great news. The UC system has a ton of academic clout and this will push smaller universities to close their contracts and bump up the impact factor of open access journals.
Elsevier's also by far the shittiest publisher in their practices [1]. 40% profit margins on publicly-funded research that the public doesn't get to access is disgusting. I can't wait for them to go out of business.
[1] https://twitter.com/dgmacarthur/status/1028489457803161600?s...