Of course you can run your business on it, you will just suffer because there is practically 0 automation to it. I guess if you are a small business but we are very obviously not talking about mom and pop shops who need a web and email server.
You're arguing semantics, you are on massive copium if you think that automation is useful to anyone. Go ahead and set up cryptographic attestation (or just try and interface with a TPM ffs) for your apps on Hetzner to decrypt customer data and see how impossible it is.
It's useful to a lot of people, not everyone has the same requirements. I'm running SecureBoot and LUKS encryption on my Laptop. If there's a TPM2 interface in whatever you can use the same thing. Add an immutable Linux distro and Kubernetes and you'll cover pretty many use cases. Not everyone has the same requirements, $BIGCLOUD makes things easier, but you also pay top dollar for it. AWS funds Amazon