SO, that post is about as irrational and unhelpful as the fools logic that says seat belts in cars are pointless because "what happens if you get trapped by the belt". So you disregard something because it will not help in 2% of accidents and accept the fatality in the other 98%? That truly is bovine.
The statistic that is commonly bandied about is that in air transport accidents involving a fatality the average survival rate is 50%.
That suggests that it is very much the case that survival could be boosted by better awareness by pax.
ps. Everyone knows that aircraft don't plummet into hotels, only schools and hospitals. 