It's built! Needs landscaping, though.
In my mind, being at the canyon is overwhelmingly surreal that walking out on that thing would not significantly add to the effect. You don't have to be anywhere near the edge to "feel" the height. It's strange. What is most interesting to me is the fact that the people who ignore the handrails the most, that is, the idiots who climb out on the rocks on the other side of the rails, are overwhelmingly European tourists. There was a streak there in college where the Germans kept falling in. Very strange. They'd have to SAR out one or two every summer.