Maps would have not helped me in the snow this year in Yosemite. With my GPS I knew within a few feet of where the trail was under me. Never made a wrong turn. I read trail journals where PCT thrus could not find the trail to Cathedral Pass (side trip) with map/compass. Piece of cake for me.
Give me technology ANY time.
I'm faster with a map. I'll use technology but there is a reason SAR teams are trained and trained and trained and trained with the map and compass. We absolutely must be able to get where we need to be and not be an additional lost victim.