Hobbes,
Again, I am agnostic on footwear part of this. However, I do see more UL people in trouble than those who take a traditional approach. They tend not to have sufficient gear, and the right gear; and clothing when things go bad. Trailrunners, shorts and a poncho in wind driven rain don't work all that swell.
Once I hiked with a group of a dozen who you use this philosophy between all of them they did not have sufficient bandages to stop one person's heavy bleeding.
I take from all and incorporate them into a philosophy that make me and those I care about safe while hiking.
