Shouldn't /etc/securetty be entirely blank/empty? I delete mine in Tails and replace it with a blank file. Why does it appear so unsecure? Why isn't it empty like many security experts recommend?

Shouldn't /etc/securetty be entirely blank/empty? I delete mine in Tails and replace it with a blank file. Why does it appear so unsecure? Why isn't it empty like many security experts recommend?
login, which btw isn't started by default in any TTY) as root is impossible (one can still usesudo suto become root if an administration password was set, of course). AFAICTsecurettyis completely pointless in Tails.