or true E2E encryption
I very much prefer to guarantee that data doesn't leave my trusted servers in the first place, rather than to encrypt it.
what's the rationale behind this? The point of a server is to ... serve things. If you're not gonna exchange data you might as well put a hard drive in a closet.
The point of encryption, to securely send information across adversarial channels, has made it possible that I can take my most secret information and send it across my worst enemies network and I don't need to care. Who on earth wants to go back to a world where I have to hide plain text documents in the sock drawer?
Having a second diverse link that is cheap to setup would be an alternative.