For what it's worth I was towing an aircraft several years ago when the QF 330 from Singapore was making its auto land at Perth airport, ATC were understandably cautious by not giving clearance to land until I was positioned on bay, vis was around 50 meters and for all they knew I could of been lost and merrily hooning down the runway.
As a fair paying passenger I would expect the airline I choose to carry fuel for an alternate.
there is always an element of hope that the necessary safeguards have been applied with a cat III landing currently in Perth.