Aws doesn't make batch chemicals, they don't transport fuel or nuclear weapons, they don't control water plants or the electrical grid, etc.
Those things cannot expect to have internet access, and should not.
There are tons of billion dollar companies with multiple datacenters or presences in multiple datacenters because of this.
There is more physical hardware right now deployed by companies of all shapes and sizes than there ever has been in history.
CISA PPD-21 Critical Infrastructure Sectors:
* Chemical Sector
* Commercial Facilities Sector
* Communications Sector
* Critical Manufacturing Sector
* Dams Sector
* Defense Industrial Base Sector
* Emergency Services Sector
* Energy Sector
* Financial Services Sector
* Food and Agriculture Sector
* Government Facilities Sector
* Healthcare and Public Health Sector
* Information Technology Sector
* Nuclear Reactors, Materials, and Waste Sector
* Transportation Systems Sector
* Water and Wastewater Systems Sector
These things need to operate without Internet, full stop. Most of these companies have been around for decades or even centuries. They're not interested in a lot of web/SaaS and can barely even spell SaaS. They're also probably likely to outlive the next few dozen frameworks or language fashions.
