Luge
First of all, regarding media showing images/video of the crash...
-If they make it down in record time, they broadcast it, right? Well that is one extreme. If they crash, they still show it. It is a risk of the game, a part of it.
Personally, I did not truly grasp or appreciate how fast and dangerous luge was until I saw that wreck. After I saw it, I immediately had a new-found respect for the athletes competing in that sport. I am glad they showed it. If you are unprepared or unwilling to see a terrible crash like that, then maybe you should not be watching luge? (RIP and best wishes)
Secondly, as for luge being a strange sport for the olympics...
It really is. So is bobsled.
Think about it. What if your kid said to you "I want to luge when I get older" or something, how do you respond? "I have no idea where to even find a luge track, sorry champ!"
Whereas if they tell you they want to figure skate you say ok, grab a pair of 20 dollar skates, finds a frozen pond, and set them out there.