Why excluding root from start-systemd-namespace

I am desabling this check to make my wsl configuration scripts work. But I dont understand why this check is there in the first place. So can someone explain me what it the purpose of it so I can rest at night ?
``
[ "$LOGNAME" != "root" ]
`` 
https://github.com/DamionGans/ubuntu-wsl2-systemd-script/blob/master/start-systemd-namespace#L5