I'm not so sure. Wouldn't leaving the bootloader/root filesystem unencrypted make the device more vulnerable to physical tampering by a non-Apple party that co

I'm not so sure. Wouldn't leaving the bootloader/root filesystem unencrypted make the device more vulnerable to physical tampering by a non-Apple party that could compromise user data? I'm assuming that these things were previously encrypted/signed with a key that only Apple controls. I could be wrong.