If I recall correctly, at Apple, the CISO role was some guy reporting to the corp IT org, entirely separate from core products and services. And we're talking about one of the most valuable and sophisticated tech companies in the world.
Amazon had an even wackier model, with separate "CISOs" for different orgs, the term meaning not much more than "a senior manager that we can put in touch with clients if needs be." Google now has a "cloud CISO" who is a nice techie guy and talks to customers, but is not actually the person in charge of the overall Google security org.
I get it that the SEC wants to change this culture and have a designated person meaningfully responsible for infosec risk, but it feels that it's a case of stick before the carrot. They have the power to reinterpret their own rules to elevate CISOs before they start cracking down on them with personal liability lawsuits.
And I'm betting that just like in the case of Uber, the CISO will end up in trouble, while all the execs will get to claim ignorance and walk free.