Some 'friend' indeed... Just from looking down Keyhole proper, I'd say that I would consider skiing skiing it in icy conditions an unacceptable risk. But maybe that's because I'm a chicken. Falling in that line and only loosing keys and wallet would be my definition of a lucky day.
A nice video of various alpine lines on closing day. post 3709. Keyhole lines at 1:20-1:50 and 2:20-2:35 but the scariest looking stuff is at 2:16