Why isn’t there a “premium” commercial Internet, similar to DOD NIPRnet, for b2b stuff and for communications to vetted infrastructure? A random business on the Internet (eyeball, not servers) cares a lot more about routes to AWS and Google than to a bunch of other eyeballs, particularly in foreign countries.

You would still want full connectivity, but when things went wrong I could lose connectivity to a Nigerian ISP without critical business risk, but losing access to Google sucks. You could largely accomplish this by prefixing the hell out of everything except the “special” connection, and ensuring DDoS and other security filtering could drop the entire normal network if needed without affecting internal or special.