I think more people would belt up if they have animations of people cracking necks or getting sucked out of window in the preflight video.
Cattling statistics like this is silly.
If you showed fat people images of obesity and said that they'd be healthier if they lost their weight, you would also cattle the statistics and look at how many fat people decided to suicide versus how many took the advice (or didn't)? What a dumb way to construct advice.