I don't know enough about this and whether there are engineering issues at play here or a girder (based on a video I saw of the crash) that maybe ought to have been placed differently. However, I don't think you can eliminate risk and it's the risk that draws many people towards some events be it luge, downhill racing, Nascar, skydiving, or whatever. The very real dangers is what makes many events and activities compelling for some to participate in and for others to watch.