that's what todd swain's old guide said as well, I dont buy it, the moves just getting to the first piece of gear are 5.7R at best, the crux is an awkward step up at the second bolt, beautiful route in a great setting.
My first 5.8 trad lead, without me even knowing it! I always knew it was stiff, but didn't give it much thought.
Fun route, the bottom can be semi-protected by a red tri-cam in the flaring flake. After a few moves you can lean left and place a small C4 or TCU in a good flake. Maybe not R, but also not your standard protected route.