13thfloormonk, after witnessing you descending I struggle to believe you employ your brakes at all. 😉
Mere mortals like myself prefer to be able to brake without a hundred metres of planning ahead, even then hoping more than believing that the bike will stop in time.
Discs allow me to play/trim with the bikes speed a little more before and mid corner. And are more consistent in shitty weather.
I’d also argue that discs are cheaper and less maintenance long term compared to rim brakes if you do a lot of miles in all seasons.
However, both times I’ve ridden in the Alps, I have done so on Shimano 105 rim brakes and they performed very well.