> It is very irresponsible to make statements like that.
I don't think so. It is irresponsible to suggest that you can secure a server you don't physically control. Full disk encryption doesn't protect your disk if someone can take a memory dump of the machine. Using sshd in an initramfs to receive the passphrase for an encrypted rootfs doesn't help if someone can modify the initramfs and wait for a the passphrase.
Encrypting your volumes does provide some security, but having to SSH into an initramfs to unlock the root partition has its own problems.