I stand corrected. I had not heard of this accident, even though it was very recent.

My point, I believe, is still valid. I think more can be done to let people know. Will it help? Probably not. At least not the first time. I imagine it going something like this:
There's an accident. Despite my newly suggested updates, people still waste time grabbing their bags and people behind them die. Criminal charges are filed, those shown on video (there will be tons of video) with bags are fined heavily and possibly stand trial for involuntary manslaughter or something of the like. (I'm not a lawyer.) They eventually skate, but maybe after that people will begin to take it seriously.

Yeah, I'm pretty pessimistic when it comes to human behavior any more.