grub-script-check does not catch typos?

[AMODIA Bioservice GmbH]

Maybe this is not a bug, but why does grub-script-check not complain 
about this script with intentional typos?

===
enuentry 'New Install' {
    insmod part_msdos
    ismod et2
    st root='(hd0,msdos1)'
    echo    'Loading Linux New Install ...'
    linux /boot/newinstall/vmlinuz
    echo    'Loading initial ramdisk ...'
    initrd /boot/newinstall/initrd.gz
}
===
Checked this with grub-script-check (GRUB) 2.06-3~deb10u3 and 
grub-script-check (GRUB) 2.06-3~deb11u5