Probably another few km of side trips and then maybe 8km of GPS error? Calculating distances from a sequence of points is hard because you have to decide what is error to smooth away and what's real. Anyway, probably still longer than the 60km Yosemite hike (but different GPS).
Maybe flickr.com/photos/dbaron/alb… is also a good answer for the "why". (Day 2, with all the photos of the mountain peaks poking above the clouds, was the highlight.) (I was actually expecting my 5-day Yosemite hike to be longer, but it wasn't.)