with ground operations monitored by dedicated radar, and centre line lighting segments switched on/off for individual guidance, navigation at least to the apron, isn't too much of a problem.
I think we needed 3 auto lands a month on line for currency. With a minimum of 2 failures practiced from a reposition to 8 miles in the simulator, recurrency training took minimal time.
I suppose the question is: are the number of fog days increasing enough to warrant real LVP introduction, or are we going to stay cat 1 in the 21st century?