The american triangle isn't ideal, but as you say not a big deal. But they've got a single gold colored locker on the end of the sling, and attached to that a silver locker on the blue runner and what looks like a non-locking biner on the orange runner, possibly cross-loading it. Angle looks small enough so it probably won't be a problem.

Additionally, the locker on the blue is face down on the rock; movement of the runner could unscrew the gate, or even break the biner.

I wouldn't go as far as calling it a death rigging, but it could easily have been made safer.

Sounds pretty much as I'd imagined. Although having stood and chatted to him while he was sitting on his pile of rope, I'd say he was somewhere in between WTTG and Laughing Man, since the "bolt" that he told me he was aiming for was a good few feet off to the right of his wreckage.

Any idea how far up he got?

umm, bolt?

He looked to be about 10-15 feet up but that is a terrible guess as we were not really looking at him.
As for C Gap. We did not get on it. We wanted to get out of there before that guy killed himself and his girl so we left without climbing it.