Looking at Dixie’s video again, I’ve had that same experience, many years ago in Denali. The lightning was far off, the storm miles away. Nevertheless when our hair started to stand on end, we descended as fast as we could. We were in open terrain for at least an hour before getting to trees. Where would Dixie have descended to up there? It’s miles and miles to get to below treeline.
When we were going up Muir Pass a few years ago, we were about 1/2 mile from the shelter when a thunderstorm rolled in, without clouds or forecast or anything. Just suddenly appeared over the crest of the hill. Do we then go up or down in all those rocks? Treeline a long ways away on the side we came from, so do we keep climbing to get down on the other side, where the trees are closer? “Run” to the hut? (I couldn’t have run, so it doesn’t matter.) Sometimes the answers are not clear. You do your best, and hope for the best. Or stay home and watch the video and never go.