We had similar concerns in Whistler regarding the Women's Downhill Ski Coarse in particular. That isn't what I meant when about being concerned about safety. This sounds to me like a very challenging course, that doesn't mean it is unsafe.
Women on the downhill in Whistler were complaining that the course was too difficult. Olympic organizes also voiced concerns, but realistically, that's just how we do it in Whistler, maybe Sochi is a bit of the same.
When I am concerned about safety, I do mean safety of the athletes, but I don't mean jumps being too big. I'm more concerned about poor fencing, inconsistent terrain, etc. A pedestrian pathway fell down just before the Commonwealth Games in India a few years ago. Those are the types of safety concerns I was worried about.
As far as 'big jumps' go, I figure, if you're a professional athlete and your sport involves jumps, you need to know what speed you can safely take those jumps at.
Contrast that to the tragic Skeleton accident on the first day of the Whistler Olympics. Everybody had said how challenging the track was, but nobody imagined anybody would fly off the track and hit a pole. The challenging track is acceptable, the pole is absolutely not. There was nothing the athlete could have done to protect himself once he came off the course.
I don't know that the snowboard cross comparisons is that kind of dangerous.