Okay, back to Deso shuttles. My buddy that was arranging the shuttle for our trip was indeed lead astray. I spoke with River Runners Transportation in Vernal this morning and they are definitely still doing Deso shuttles. They are the only BLM permitted service for shuttling vehicles (Red Tail is permitted for air service), and run multiple shuttles every day. And as mentioned frequently on MountainBuzz, they come highly recommended.
"Therefore have I uttered that which I understood not."