My first thought. They are now making the wall higher and other changes, but why have the pole there at all, with nothing to even slow velocity down? Even the skiers have barriers, nets, etc.
The poles are support beams for the cover that sits over the track, which is needed to keep the sun off it and keep it cool. They can't remove those. Though that doesn't mean they can't find some way to still protect lugers, like soft padding or nets or something. They should have planned that turn with the EXPECTATION that people would crash.
I think the reason past deaths haven't been honoured is because deaths are becoming more high profile. To use the tour de france example, well I don't watch that race so if there have been fatalities I wouldn't know. Same with auto racing (though that really doesn't surprise me, the number of deaths). But with the Olympics getting bigger, the opening ceremonies are starting to get more elaborate (IMO Vancouver outdid Beijing, and that's huge because I thought Beijing's were pretty awesome!) and so more people are starting to get exposed to the reality of people dying at the Olympics.