Since OTR is being broadcast only 1 week after the incident, they will probably say something about it, but not show any footage. I mean, how can you talk about a race where participants where killed and not at least mention that it happened? I don't think Speed will dwell on it since they seem to have respect for the sport and for the crews involved, and as Sha_zapple said, they probably didn't get any footage of it anyway. Expect it to be mentioned and expect to hear a bit about their past, but not much else.
If you are trying convince your parents/wife/whatever to let you get involved in the sport as a driver or co-driver, then the OTR broadcast will probably not be the best venue to introduce them to the sport. Pick one that didn't involve anybody crashing too bad.
I read elsewhere that officials expected to spend two weeks analyzing the "black box" to determine exactly what happened - speed, tire grip, reactions of the driver, etc. I imagine, once the families have had time to grieve, and the investigators have had time to analyize the data, we'll probably start hearing more about this. I would expect to see crash footage at the end of the year, during the end-of-season reports.
You don't drive down a tree-lined gravel road at 100+MPH without knowing full well the dangers involved. Nobody expects a crew to be killed, but it can happen. Launch a car at high-speeds into the trees and there's a very good chance something horrible will happen. This is not the first time people have died in professional racing, rally or otherwise, and it won't be the last.