Sorry to be the party pooper here, but I feel obligated to fill in a major gap here. Obviously people can make it down this chute without proper equipment and skills - when conditions are great. The problem is when conditions are not so great or the unexpected happens. Here are a couple quotes from a 2011 thread
to consider. There are many other posts and stories out there if you search including the guy who died a few days after one of my glissades down that chute:
1. While I was on Inyo SAR we recovered the body of a man who have attempted a glissade from Trail Crest. He apparently lost his ice axe about 200 feet above his final resting place; he was wrapped around a rock, which must have knocked him out, and subsequently died of hypothermia. The accident happened in February, during a drought winter.
During a Sierra Club mountaineering class, the students were being taught how to do a standing glissade! (Near Slim Lake - Keasage Pass area.) One guy ended up with a broken ankle. We flew him out in a helo. Lesson learned? I guess...
2. It was in April 2000, and two friends and I were descending after a day climb. The top few inches of snow was soft all day so we didn't really need our crampons, but they gave a little added traction while walking. Of course we knew better than to leave them on for glissades, but the snow was so soft and the going so slow that it didn't seem a problem.
The long glissade below Trail Crest was without incident, but the next good one--down to Mirror LakeŚwas a different story. After about 200 feet I hit an unexpected patch of ice and speeded up instantly. The outer points of my right crampon caught on the ice and my foot everted. My fibula was put into instant compression, resulting in a spiral fracture. I went head-over-heels with my ankle feeling like fire, but had the presence of mind to successfully arrest without crashing into the rocks below.