I really fail to see any major problem here. Remember when we used to have diff Mins for day & night Ops years ago? They changed that as what's the diff between being in cloud with zero ref to outside as against night time (in cloud or otherwise)? Nothing.
Often it's easier to have the req'd Viz at night than it is in daytime.
Cairns is an Eg, we come damned close to high terrain in & out of that place, being doing so for years.
It's more about A/C performance than anything else.
Improving the dromes conditions will help reduce the risks but it won't stop man from flying into a mountain in a perfectly serviceable plane day or night!
Wmk2