If LVP's are not inforce at the airfield the ILS is not protected for
autolands.
It is not protected for Cat2/3 approaches, autoland is at your discretion, not recommended at Munich!
Personally I brief autoland if any significant cloud below 500ft or vis less
than 1500m and consider reverting to Cat I if appropriate
Agree 100%, always brief and fly the worst case scenario then situations such as the OP describes can be avoided safely.